./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2432656227

<...>
Warning: Permanently added '10.128.0.82' (ED25519) to the list of known hosts.
execve("./syz-executor2432656227", ["./syz-executor2432656227"], 0x7ffd5e9147a0 /* 10 vars */) = 0
brk(NULL)                               = 0x55556f72b000
brk(0x55556f72bd00)                     = 0x55556f72bd00
arch_prctl(ARCH_SET_FS, 0x55556f72b380) = 0
set_tid_address(0x55556f72b650)         = 341
set_robust_list(0x55556f72b660, 24)     = 0
rseq(0x55556f72bca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2432656227", 4096) = 28
getrandom("\x6f\xe6\x0a\xd7\xff\x62\xa1\x41", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55556f72bd00
brk(0x55556f74cd00)                     = 0x55556f74cd00
brk(0x55556f74d000)                     = 0x55556f74d000
mprotect(0x7fca96db7000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
mkdir("/syzcgroup", 0777)               = 0
mkdir("/syzcgroup/unified", 0777)       = 0
mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0
[   28.347516][   T23] audit: type=1400 audit(1746895987.390:81): avc:  denied  { execmem } for  pid=341 comm="syz-executor243" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
chmod("/syzcgroup/unified", 0777)       = 0
openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3
write(3, "+cpu", 4)                     = 4
write(3, "+io", 3)                      = 3
write(3, "+pids", 5)                    = 5
close(3)                                = 0
mkdir("/syzcgroup/net", 0777)           = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument)
[   28.393525][   T23] audit: type=1400 audit(1746895987.430:82): avc:  denied  { mounton } for  pid=341 comm="syz-executor243" path="/syzcgroup/unified" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[   28.399991][  T341] cgroup1: Unknown subsys name 'net'
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
[   28.416678][   T23] audit: type=1400 audit(1746895987.430:83): avc:  denied  { mount } for  pid=341 comm="syz-executor243" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[   28.423050][  T341] cgroup1: Unknown subsys name 'net_prio'
[   28.450978][  T341] cgroup1: Unknown subsys name 'devices'
[   28.458610][   T23] audit: type=1400 audit(1746895987.500:84): avc:  denied  { unmount } for  pid=341 comm="syz-executor243" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio,freezer") = 0
chmod("/syzcgroup/net", 0777)           = 0
mkdir("/syzcgroup/cpu", 0777)           = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "memory") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
[   28.602938][  T341] cgroup1: Unknown subsys name 'hugetlb'
[   28.609855][  T341] cgroup1: Unknown subsys name 'rlimit'
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = 0
chmod("/syzcgroup/cpu", 0777)           = 0
openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
mount(NULL, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, NULL) = -1 EBUSY (Device or resource busy)
openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3
write(3, "\x3a\x73\x79\x7a\x30\x3a\x4d\x3a\x30\x3a\x01\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a", 21) = 21
close(3)                                = 0
openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3
write(3, "\x3a\x73\x79\x7a\x31\x3a\x4d\x3a\x31\x3a\x02\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a\x50\x4f\x43", 24) = 24
close(3)                                = 0
mkdir("./syzkaller.82647x", 0700)       = 0
chmod("./syzkaller.82647x", 0777)       = 0
chdir("./syzkaller.82647x")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 343
./strace-static-x86_64: Process 343 attached
[pid   343] set_robust_list(0x55556f72b660, 24) = 0
[pid   343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   343] getppid()                   = 0
[pid   343] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   343] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   343] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   343] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   343] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   343] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   343] unshare(CLONE_NEWNS)        = 0
[pid   343] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   343] unshare(CLONE_NEWCGROUP)    = 0
[pid   343] unshare(CLONE_NEWUTS)       = 0
[pid   343] unshare(CLONE_SYSVSEM)      = 0
[pid   343] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   343] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   343] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   343] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   343] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   343] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   343] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   343] getpid()                    = 1
[pid   343] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ, inheritable=0}) = 0
[pid   343] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ, inheritable=0}) = 0
[   28.772470][   T23] audit: type=1400 audit(1746895987.810:85): avc:  denied  { mounton } for  pid=341 comm="syz-executor243" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[   28.797919][   T23] audit: type=1400 audit(1746895987.810:86): avc:  denied  { mount } for  pid=341 comm="syz-executor243" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1
[pid   343] unshare(CLONE_NEWNET)       = 0
[pid   343] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "0 65535", 7)      = 7
[pid   343] close(3)                    = 0
[pid   343] openat(AT_FDCWD, "/dev/net/tun", O_RDWR|O_NONBLOCK) = 3
[pid   343] dup2(3, 200)                = 200
[pid   343] close(3)                    = 0
[pid   343] ioctl(200, TUNSETIFF, 0x7ffde2569f50) = 0
[pid   343] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/accept_dad", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "0", 1)            = 1
[pid   343] close(3)                    = 0
[pid   343] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/router_solicitations", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "0", 1)            = 1
[pid   343] close(3)                    = 0
[pid   343] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3
[pid   343] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4
[pid   343] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0
[pid   343] close(4)                    = 0
[pid   343] sendto(3, [{nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x18\x00\x00\x0b\x00\x00\x00\x08\x00\x02\x00\xac\x14\x14\xaa\x08\x00\x01\x00\xac\x14\x14\xaa"], 40, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 40
[pid   343] recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36
[pid   343] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4
[pid   343] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0
[pid   343] close(4)                    = 0
[pid   343] sendto(3, [{nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x78\x00\x00\x0b\x00\x00\x00\x14\x00\x02\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa"], 64, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 64
[pid   343] recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36
[pid   343] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4
[pid   343] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0
[pid   343] close(4)                    = 0
[pid   343] sendto(3, [{nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x08\x00\x01\x00\xac\x14\x14\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 48, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 48
[pid   343] recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36
[pid   343] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4
[pid   343] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0
[pid   343] close(4)                    = 0
[pid   343] sendto(3, [{nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 60, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 60
[pid   343] recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36
[pid   343] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4
[pid   343] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0
[pid   343] close(4)                    = 0
[pid   343] sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\xaa\x00\x00"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44
[pid   343] recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36
[pid   343] close(3)                    = 0
[pid   343] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "100000", 6)       = 6
[pid   343] close(3)                    = 0
[pid   343] mkdir("./syz-tmp", 0777)    = 0
[pid   343] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   343] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   343] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   343] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   343] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   343] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   343] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   343] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   343] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   343] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   343] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   343] mkdir("./syz-tmp/newroot/syzcgroup", 0700) = 0
[pid   343] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700) = 0
[pid   343] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700) = 0
[pid   343] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700) = 0
[pid   343] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   343] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   343] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   343] chdir("/")                  = 0
[   28.822428][   T23] audit: type=1400 audit(1746895987.840:87): avc:  denied  { mounton } for  pid=343 comm="syz-executor243" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   28.845035][   T23] audit: type=1400 audit(1746895987.880:88): avc:  denied  { create } for  pid=338 comm="strace-static-x" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_tcpdiag_socket permissive=1
[pid   343] umount2("./pivot", MNT_DETACH) = 0
[pid   343] chroot("./newroot")         = 0
[pid   343] chdir("/")                  = 0
[pid   343] mkdir("/dev/gadgetfs", 0777) = 0
[pid   343] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   343] mkdir("/dev/binderfs", 0777) = 0
[pid   343] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   343] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   343] getpid()                    = 1
[pid   343] mkdir("/syzcgroup/unified/syz0", 0777) = 0
[pid   343] openat(AT_FDCWD, "/syzcgroup/unified/syz0/pids.max", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "32", 2)           = 2
[pid   343] close(3)                    = 0
[pid   343] openat(AT_FDCWD, "/syzcgroup/unified/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "1", 1)            = 1
[pid   343] close(3)                    = 0
[pid   343] mkdir("/syzcgroup/cpu/syz0", 0777) = 0
[pid   343] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "1", 1)            = 1
[pid   343] close(3)                    = 0
[pid   343] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "313524224", 9)    = 9
[pid   343] close(3)                    = 0
[pid   343] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "314572800", 9)    = 9
[pid   343] close(3)                    = 0
[pid   343] mkdir("/syzcgroup/net/syz0", 0777) = 0
[pid   343] openat(AT_FDCWD, "/syzcgroup/net/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "1", 1)            = 1
[pid   343] close(3)                    = 0
[pid   343] mkdir("./0", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 344 attached
 <unfinished ...>
[pid   344] set_robust_list(0x55556f72b660, 24) = 0
[pid   344] chdir("./0" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 2
[pid   344] <... chdir resumed>)        = 0
[pid   344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   344] setpgid(0, 0)               = 0
[pid   344] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   344] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   344] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   344] write(3, "1000", 4)         = 4
[pid   344] close(3)                    = 0
[pid   344] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110
[pid   344] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   344] symlink("/dev/binderfs", "./binderfs") = 0
[pid   344] write(1, "executing program\n", 18executing program
) = 18
[pid   344] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   344] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   344] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   344] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   344] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   344] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   344] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   344] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   344] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   344] memfd_create("syzkaller", 0) = 5
[pid   344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[   28.866370][   T23] audit: type=1400 audit(1746895987.880:89): avc:  denied  { write } for  pid=338 comm="strace-static-x" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_tcpdiag_socket permissive=1
[   28.887166][   T23] audit: type=1400 audit(1746895987.880:90): avc:  denied  { nlmsg_read } for  pid=338 comm="strace-static-x" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_tcpdiag_socket permissive=1
[   28.889428][  T343] request_module fs-gadgetfs succeeded, but still no fs?
[pid   344] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   344] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   344] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   344] close(5)                    = 0
[pid   344] close(6)                    = 0
[pid   344] mkdir("./file0", 0777)      = 0
[pid   344] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   344] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   344] chdir("./file0")            = 0
[pid   344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   344] ioctl(6, LOOP_CLR_FD)       = 0
[pid   344] close(6)                    = 0
[pid   344] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   344] write(6, "#! ./file1\n", 11) = 11
[pid   344] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   344] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   344] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=2, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[   28.970117][  T344] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   28.991103][  T345] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-344: bg 0: block 234: padding at end of block bitmap is not set
[   29.008282][  T345] vhost-344 (345) used greatest stack depth: 23568 bytes left
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   29.016543][  T344] syz-executor243 (344) used greatest stack depth: 21824 bytes left
[pid   343] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./0/file0")          = 0
[pid   343] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./0/binderfs")      = 0
[pid   343] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./0/cgroup.net")    = 0
[pid   343] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./0/cgroup.cpu")    = 0
[pid   343] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./0/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./0")                = 0
[pid   343] mkdir("./1", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 349 attached
 <unfinished ...>
[pid   349] set_robust_list(0x55556f72b660, 24) = 0
[pid   349] chdir("./1" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 3
[pid   349] <... chdir resumed>)        = 0
[pid   349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   349] setpgid(0, 0)               = 0
[pid   349] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   349] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   349] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   349] write(3, "1000", 4)         = 4
[pid   349] close(3)                    = 0
[pid   349] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   349] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   349] write(1, "executing program\n", 18) = 18
[pid   349] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   349] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   349] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   349] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   349] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   349] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   349] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   349] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   349] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   349] memfd_create("syzkaller", 0) = 5
[pid   349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   349] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   349] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   349] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   349] close(5)                    = 0
[pid   349] close(6)                    = 0
[pid   349] mkdir("./file0", 0777)      = 0
[pid   349] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   349] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   349] chdir("./file0")            = 0
[pid   349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   349] ioctl(6, LOOP_CLR_FD)       = 0
[pid   349] close(6)                    = 0
[pid   349] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   349] write(6, "#! ./file1\n", 11) = 11
[pid   349] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   349] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   349] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=3, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   29.139399][  T349] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   29.160817][  T350] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-349: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./1/file0")          = 0
[pid   343] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./1/binderfs")      = 0
[pid   343] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./1/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./1/cgroup.net")    = 0
[pid   343] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./1/cgroup.cpu")    = 0
[pid   343] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./1/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./1/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./1")                = 0
[pid   343] mkdir("./2", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 354 attached
 <unfinished ...>
[pid   354] set_robust_list(0x55556f72b660, 24) = 0
[pid   354] chdir("./2" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 4
[pid   354] <... chdir resumed>)        = 0
[pid   354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   354] setpgid(0, 0)               = 0
[pid   354] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   354] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   354] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   354] write(3, "1000", 4)         = 4
[pid   354] close(3)                    = 0
[pid   354] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   354] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   354] write(1, "executing program\n", 18) = 18
[pid   354] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   354] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   354] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   354] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   354] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   354] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   354] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   354] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   354] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   354] memfd_create("syzkaller", 0) = 5
[pid   354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   354] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   354] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   354] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   354] close(5)                    = 0
[pid   354] close(6)                    = 0
[pid   354] mkdir("./file0", 0777)      = 0
[pid   354] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   354] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   354] chdir("./file0")            = 0
[pid   354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   354] ioctl(6, LOOP_CLR_FD)       = 0
[pid   354] close(6)                    = 0
[pid   354] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   354] write(6, "#! ./file1\n", 11) = 11
[pid   354] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   354] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   354] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=4, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   29.292281][  T354] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   29.312749][  T355] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-354: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./2/file0")          = 0
[pid   343] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./2/binderfs")      = 0
[pid   343] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./2/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./2/cgroup.net")    = 0
[pid   343] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./2/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./2/cgroup.cpu")    = 0
[pid   343] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./2/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./2/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./2")                = 0
[pid   343] mkdir("./3", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 5
./strace-static-x86_64: Process 359 attached
[pid   359] set_robust_list(0x55556f72b660, 24) = 0
[pid   359] chdir("./3")                = 0
[pid   359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   359] setpgid(0, 0)               = 0
[pid   359] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   359] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   359] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   359] write(3, "1000", 4)         = 4
[pid   359] close(3)                    = 0
[pid   359] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110
[pid   359] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   359] symlink("/dev/binderfs", "./binderfs") = 0
[pid   359] write(1, "executing program\n", 18executing program
) = 18
[pid   359] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   359] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   359] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   359] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   359] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   359] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   359] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   359] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   359] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   359] memfd_create("syzkaller", 0) = 5
[pid   359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   359] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   359] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   359] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   359] close(5)                    = 0
[pid   359] close(6)                    = 0
[pid   359] mkdir("./file0", 0777)      = 0
[pid   359] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   359] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   359] chdir("./file0")            = 0
[pid   359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   359] ioctl(6, LOOP_CLR_FD)       = 0
[pid   359] close(6)                    = 0
[pid   359] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   359] write(6, "#! ./file1\n", 11) = 11
[pid   359] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   359] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   359] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=5, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   29.445756][  T359] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   29.466629][  T360] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-359: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./3/file0")          = 0
[pid   343] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./3/binderfs")      = 0
[pid   343] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./3/cgroup.net")    = 0
[pid   343] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./3/cgroup.cpu")    = 0
[pid   343] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./3/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./3")                = 0
[pid   343] mkdir("./4", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program
, child_tidptr=0x55556f72b650) = 6
./strace-static-x86_64: Process 364 attached
[pid   364] set_robust_list(0x55556f72b660, 24) = 0
[pid   364] chdir("./4")                = 0
[pid   364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   364] setpgid(0, 0)               = 0
[pid   364] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   364] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   364] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   364] write(3, "1000", 4)         = 4
[pid   364] close(3)                    = 0
[pid   364] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   364] symlink("/dev/binderfs", "./binderfs") = 0
[pid   364] write(1, "executing program\n", 18) = 18
[pid   364] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   364] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   364] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   364] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   364] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   364] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   364] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   364] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   364] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   364] memfd_create("syzkaller", 0) = 5
[pid   364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   364] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   364] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   364] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   364] close(5)                    = 0
[pid   364] close(6)                    = 0
[pid   364] mkdir("./file0", 0777)      = 0
[pid   364] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   364] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   364] chdir("./file0")            = 0
[pid   364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   364] ioctl(6, LOOP_CLR_FD)       = 0
[pid   364] close(6)                    = 0
[pid   364] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   364] write(6, "#! ./file1\n", 11) = 11
[pid   364] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   364] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   364] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=6, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   29.627646][  T364] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   29.659611][  T365] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-364: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./4/file0")          = 0
[pid   343] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./4/binderfs")      = 0
[pid   343] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./4/cgroup.net")    = 0
[pid   343] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./4/cgroup.cpu")    = 0
[pid   343] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./4/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./4")                = 0
[pid   343] mkdir("./5", 0777)          = 0
executing program
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 7
./strace-static-x86_64: Process 369 attached
[pid   369] set_robust_list(0x55556f72b660, 24) = 0
[pid   369] chdir("./5")                = 0
[pid   369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   369] setpgid(0, 0)               = 0
[pid   369] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   369] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   369] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   369] write(3, "1000", 4)         = 4
[pid   369] close(3)                    = 0
[pid   369] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   369] symlink("/dev/binderfs", "./binderfs") = 0
[pid   369] write(1, "executing program\n", 18) = 18
[pid   369] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   369] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   369] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   369] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   369] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   369] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   369] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   369] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   369] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   369] memfd_create("syzkaller", 0) = 5
[pid   369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   369] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   369] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   369] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   369] close(5)                    = 0
[pid   369] close(6)                    = 0
[pid   369] mkdir("./file0", 0777)      = 0
[pid   369] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   369] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   369] chdir("./file0")            = 0
[pid   369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   369] ioctl(6, LOOP_CLR_FD)       = 0
[pid   369] close(6)                    = 0
[pid   369] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   369] write(6, "#! ./file1\n", 11) = 11
[pid   369] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   369] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   369] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=7, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   29.777728][  T369] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   29.794756][  T369] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./5/file0")          = 0
[pid   343] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./5/binderfs")      = 0
[pid   343] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./5/cgroup.net")    = 0
[pid   343] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./5/cgroup.cpu")    = 0
[pid   343] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./5/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./5")                = 0
[pid   343] mkdir("./6", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 374 attached
 <unfinished ...>
[pid   374] set_robust_list(0x55556f72b660, 24) = 0
[pid   374] chdir("./6" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 8
[pid   374] <... chdir resumed>)        = 0
[pid   374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   374] setpgid(0, 0)               = 0
[pid   374] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   374] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   374] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   374] write(3, "1000", 4)         = 4
[pid   374] close(3)                    = 0
[pid   374] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110
[pid   374] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
executing program
[pid   374] symlink("/dev/binderfs", "./binderfs") = 0
[pid   374] write(1, "executing program\n", 18) = 18
[pid   374] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   374] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   374] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   374] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   374] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   374] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   374] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   374] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   374] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   374] memfd_create("syzkaller", 0) = 5
[pid   374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   374] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   374] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   374] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   374] close(5)                    = 0
[pid   374] close(6)                    = 0
[pid   374] mkdir("./file0", 0777)      = 0
[pid   374] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   374] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   374] chdir("./file0")            = 0
[pid   374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   374] ioctl(6, LOOP_CLR_FD)       = 0
[pid   374] close(6)                    = 0
[pid   374] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   374] write(6, "#! ./file1\n", 11) = 11
[pid   374] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   374] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   374] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=8, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   29.957802][  T374] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   29.978959][  T375] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-374: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./6/file0")          = 0
[pid   343] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./6/binderfs")      = 0
[pid   343] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./6/cgroup.net")    = 0
[pid   343] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./6/cgroup.cpu")    = 0
[pid   343] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./6/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./6")                = 0
[pid   343] mkdir("./7", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 379 attached
 <unfinished ...>
[pid   379] set_robust_list(0x55556f72b660, 24) = 0
[pid   379] chdir("./7" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 9
[pid   379] <... chdir resumed>)        = 0
[pid   379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   379] setpgid(0, 0)               = 0
[pid   379] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   379] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   379] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   379] write(3, "1000", 4)         = 4
[pid   379] close(3)                    = 0
[pid   379] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   379] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   379] write(1, "executing program\n", 18) = 18
[pid   379] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   379] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   379] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   379] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   379] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   379] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   379] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   379] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   379] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   379] memfd_create("syzkaller", 0) = 5
[pid   379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   379] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   379] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   379] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   379] close(5)                    = 0
[pid   379] close(6)                    = 0
[pid   379] mkdir("./file0", 0777)      = 0
[pid   379] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   379] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   379] chdir("./file0")            = 0
[pid   379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   379] ioctl(6, LOOP_CLR_FD)       = 0
[pid   379] close(6)                    = 0
[pid   379] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   379] write(6, "#! ./file1\n", 11) = 11
[pid   379] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   379] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   379] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=9, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   30.161458][  T379] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   30.182010][  T380] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-379: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./7/file0")          = 0
[pid   343] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./7/binderfs")      = 0
[pid   343] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./7/cgroup.net")    = 0
[pid   343] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./7/cgroup.cpu")    = 0
[pid   343] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./7/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./7")                = 0
[pid   343] mkdir("./8", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 384 attached
 <unfinished ...>
[pid   384] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 10
[pid   384] <... set_robust_list resumed>) = 0
[pid   384] chdir("./8")                = 0
[pid   384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   384] setpgid(0, 0)               = 0
[pid   384] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   384] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   384] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   384] write(3, "1000", 4)         = 4
[pid   384] close(3)                    = 0
[pid   384] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   384] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   384] write(1, "executing program\n", 18) = 18
[pid   384] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   384] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   384] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   384] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   384] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   384] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   384] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   384] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   384] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   384] memfd_create("syzkaller", 0) = 5
[pid   384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   384] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   384] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   384] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   384] close(5)                    = 0
[pid   384] close(6)                    = 0
[pid   384] mkdir("./file0", 0777)      = 0
[pid   384] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   384] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   384] chdir("./file0")            = 0
[pid   384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   384] ioctl(6, LOOP_CLR_FD)       = 0
[pid   384] close(6)                    = 0
[pid   384] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   384] write(6, "#! ./file1\n", 11) = 11
[pid   384] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   384] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   384] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=10, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   30.367729][  T384] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   30.386475][  T385] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-384: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./8/file0")          = 0
[pid   343] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./8/binderfs")      = 0
[pid   343] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./8/cgroup.net")    = 0
[pid   343] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./8/cgroup.cpu")    = 0
[pid   343] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./8/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./8")                = 0
[pid   343] mkdir("./9", 0777)          = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 389 attached
 <unfinished ...>
[pid   389] set_robust_list(0x55556f72b660, 24) = 0
[pid   389] chdir("./9" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 11
[pid   389] <... chdir resumed>)        = 0
[pid   389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   389] setpgid(0, 0)               = 0
[pid   389] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   389] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   389] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   389] write(3, "1000", 4)         = 4
[pid   389] close(3)                    = 0
[pid   389] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   389] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   389] write(1, "executing program\n", 18) = 18
[pid   389] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   389] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   389] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   389] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   389] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   389] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   389] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   389] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   389] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   389] memfd_create("syzkaller", 0) = 5
[pid   389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   389] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   389] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   389] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   389] close(5)                    = 0
[pid   389] close(6)                    = 0
[pid   389] mkdir("./file0", 0777)      = 0
[pid   389] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   389] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   389] chdir("./file0")            = 0
[pid   389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   389] ioctl(6, LOOP_CLR_FD)       = 0
[pid   389] close(6)                    = 0
[pid   389] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   389] write(6, "#! ./file1\n", 11) = 11
[pid   389] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   389] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   389] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=11, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   30.557742][  T389] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   30.577591][  T390] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-389: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./9/file0")          = 0
[pid   343] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./9/binderfs")      = 0
[pid   343] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./9/cgroup.net")    = 0
[pid   343] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./9/cgroup.cpu")    = 0
[pid   343] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./9/cgroup")        = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./9")                = 0
[pid   343] mkdir("./10", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 12
./strace-static-x86_64: Process 394 attached
[pid   394] set_robust_list(0x55556f72b660, 24) = 0
[pid   394] chdir("./10")               = 0
[pid   394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   394] setpgid(0, 0)               = 0
[pid   394] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   394] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   394] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   394] write(3, "1000", 4)         = 4
[pid   394] close(3)                    = 0
[pid   394] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   394] symlink("/dev/binderfs", "./binderfs") = 0
[pid   394] write(1, "executing program\n", 18executing program
) = 18
[pid   394] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   394] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   394] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   394] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   394] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   394] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   394] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   394] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   394] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   394] memfd_create("syzkaller", 0) = 5
[pid   394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   394] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   394] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   394] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   394] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   394] close(5)                    = 0
[pid   394] close(6)                    = 0
[pid   394] mkdir("./file0", 0777)      = 0
[pid   394] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   394] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   394] chdir("./file0")            = 0
[pid   394] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   394] ioctl(6, LOOP_CLR_FD)       = 0
[pid   394] close(6)                    = 0
[pid   394] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   394] write(6, "#! ./file1\n", 11) = 11
[pid   394] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   394] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   394] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=12, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   30.797743][  T394] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   30.818570][  T395] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-394: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./10/file0")         = 0
[pid   343] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./10/binderfs")     = 0
[pid   343] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./10/cgroup.net")   = 0
[pid   343] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./10/cgroup.cpu")   = 0
[pid   343] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./10/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./10/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./10")               = 0
[pid   343] mkdir("./11", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 399 attached
, child_tidptr=0x55556f72b650) = 13
[pid   399] set_robust_list(0x55556f72b660, 24) = 0
[pid   399] chdir("./11")               = 0
[pid   399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   399] setpgid(0, 0)               = 0
[pid   399] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   399] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   399] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   399] write(3, "1000", 4)         = 4
[pid   399] close(3)                    = 0
[pid   399] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   399] symlink("/dev/binderfs", "./binderfs") = 0
[pid   399] write(1, "executing program\n", 18executing program
) = 18
[pid   399] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   399] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   399] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   399] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   399] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   399] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   399] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   399] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   399] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   399] memfd_create("syzkaller", 0) = 5
[pid   399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   399] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   399] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   399] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   399] close(5)                    = 0
[pid   399] close(6)                    = 0
[pid   399] mkdir("./file0", 0777)      = 0
[pid   399] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   399] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   399] chdir("./file0")            = 0
[pid   399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   399] ioctl(6, LOOP_CLR_FD)       = 0
[pid   399] close(6)                    = 0
[pid   399] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   399] write(6, "#! ./file1\n", 11) = 11
[pid   399] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   399] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   399] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=13, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   31.000270][  T399] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   31.019758][  T400] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-399: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./11/file0")         = 0
[pid   343] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./11/binderfs")     = 0
[pid   343] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./11/cgroup.net")   = 0
[pid   343] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./11/cgroup.cpu")   = 0
[pid   343] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./11/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./11")               = 0
[pid   343] mkdir("./12", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 404 attached
, child_tidptr=0x55556f72b650) = 14
[pid   404] set_robust_list(0x55556f72b660, 24) = 0
[pid   404] chdir("./12")               = 0
[pid   404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   404] setpgid(0, 0)               = 0
[pid   404] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   404] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   404] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   404] write(3, "1000", 4)         = 4
[pid   404] close(3)                    = 0
[pid   404] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   404] symlink("/dev/binderfs", "./binderfs") = 0
[pid   404] write(1, "executing program\n", 18executing program
) = 18
[pid   404] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   404] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   404] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   404] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   404] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   404] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   404] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   404] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   404] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   404] memfd_create("syzkaller", 0) = 5
[pid   404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   404] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   404] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   404] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   404] close(5)                    = 0
[pid   404] close(6)                    = 0
[pid   404] mkdir("./file0", 0777)      = 0
[pid   404] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   404] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   404] chdir("./file0")            = 0
[pid   404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   404] ioctl(6, LOOP_CLR_FD)       = 0
[pid   404] close(6)                    = 0
[pid   404] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   404] write(6, "#! ./file1\n", 11) = 11
[pid   404] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   404] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   404] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=14, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   31.157886][  T404] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   31.174534][  T404] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./12/file0")         = 0
[pid   343] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./12/binderfs")     = 0
[pid   343] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./12/cgroup.net")   = 0
[pid   343] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./12/cgroup.cpu")   = 0
[pid   343] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./12/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./12")               = 0
[pid   343] mkdir("./13", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 409 attached
 <unfinished ...>
[pid   409] set_robust_list(0x55556f72b660, 24) = 0
[pid   409] chdir("./13" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 15
[pid   409] <... chdir resumed>)        = 0
[pid   409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   409] setpgid(0, 0)               = 0
[pid   409] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   409] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   409] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   409] write(3, "1000", 4)         = 4
[pid   409] close(3)                    = 0
[pid   409] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   409] symlink("/dev/binderfs", "./binderfs") = 0
[pid   409] write(1, "executing program\n", 18executing program
) = 18
[pid   409] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   409] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   409] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   409] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   409] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   409] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   409] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   409] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   409] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   409] memfd_create("syzkaller", 0) = 5
[pid   409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   409] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   409] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   409] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   409] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   409] close(5)                    = 0
[pid   409] close(6)                    = 0
[pid   409] mkdir("./file0", 0777)      = 0
[pid   409] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   409] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   409] chdir("./file0")            = 0
[pid   409] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   409] ioctl(6, LOOP_CLR_FD)       = 0
[pid   409] close(6)                    = 0
[pid   409] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   409] write(6, "#! ./file1\n", 11) = 11
[pid   409] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   409] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   409] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=15, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   31.357781][  T409] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   31.377974][  T410] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-409: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./13/file0")         = 0
[pid   343] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./13/binderfs")     = 0
[pid   343] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./13/cgroup.net")   = 0
[pid   343] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./13/cgroup.cpu")   = 0
[pid   343] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./13/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./13")               = 0
[pid   343] mkdir("./14", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 414 attached
 <unfinished ...>
[pid   414] set_robust_list(0x55556f72b660, 24) = 0
[pid   414] chdir("./14")               = 0
[pid   414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   414] setpgid(0, 0)               = 0
[pid   414] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   414] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   414] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   414] write(3, "1000", 4)         = 4
[pid   414] close(3)                    = 0
[pid   414] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   414] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   414] write(1, "executing program\n", 18) = 18
[pid   414] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   414] ioctl(3, VHOST_SET_OWNER <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 16
[pid   414] <... ioctl resumed>, 0)     = 0
[pid   414] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   414] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   414] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   414] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   414] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   414] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   414] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   414] memfd_create("syzkaller", 0) = 5
[pid   414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   414] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   414] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   414] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   414] close(5)                    = 0
[pid   414] close(6)                    = 0
[pid   414] mkdir("./file0", 0777)      = 0
[pid   414] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   414] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   414] chdir("./file0")            = 0
[pid   414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   414] ioctl(6, LOOP_CLR_FD)       = 0
[pid   414] close(6)                    = 0
[pid   414] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   414] write(6, "#! ./file1\n", 11) = 11
[pid   414] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   414] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   414] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=16, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   31.517764][  T414] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   31.532670][  T415] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-414: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./14/file0")         = 0
[pid   343] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./14/binderfs")     = 0
[pid   343] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./14/cgroup.net")   = 0
[pid   343] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./14/cgroup.cpu")   = 0
[pid   343] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./14/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./14")               = 0
[pid   343] mkdir("./15", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 419 attached
, child_tidptr=0x55556f72b650) = 17
[pid   419] set_robust_list(0x55556f72b660, 24) = 0
[pid   419] chdir("./15")               = 0
[pid   419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   419] setpgid(0, 0)               = 0
[pid   419] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   419] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   419] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   419] write(3, "1000", 4)         = 4
[pid   419] close(3)                    = 0
[pid   419] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   419] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   419] write(1, "executing program\n", 18) = 18
[pid   419] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   419] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   419] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   419] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   419] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   419] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   419] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   419] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   419] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   419] memfd_create("syzkaller", 0) = 5
[pid   419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   419] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   419] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   419] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   419] close(5)                    = 0
[pid   419] close(6)                    = 0
[pid   419] mkdir("./file0", 0777)      = 0
[pid   419] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   419] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   419] chdir("./file0")            = 0
[pid   419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   419] ioctl(6, LOOP_CLR_FD)       = 0
[pid   419] close(6)                    = 0
[pid   419] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   419] write(6, "#! ./file1\n", 11) = 11
[pid   419] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   419] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   419] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=17, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   31.720638][  T419] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   31.741131][  T420] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-419: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./15/file0")         = 0
[pid   343] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./15/binderfs")     = 0
[pid   343] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./15/cgroup.net")   = 0
[pid   343] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./15/cgroup.cpu")   = 0
[pid   343] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./15/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./15")               = 0
[pid   343] mkdir("./16", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 424 attached
, child_tidptr=0x55556f72b650) = 18
[pid   424] set_robust_list(0x55556f72b660, 24) = 0
[pid   424] chdir("./16")               = 0
[pid   424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   424] setpgid(0, 0)               = 0
[pid   424] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   424] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   424] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   424] write(3, "1000", 4)         = 4
[pid   424] close(3)                    = 0
[pid   424] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   424] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   424] write(1, "executing program\n", 18) = 18
[pid   424] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   424] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   424] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   424] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   424] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   424] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   424] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   424] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   424] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   424] memfd_create("syzkaller", 0) = 5
[pid   424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   424] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   424] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   424] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   424] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   424] close(5)                    = 0
[pid   424] close(6)                    = 0
[pid   424] mkdir("./file0", 0777)      = 0
[pid   424] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   424] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   424] chdir("./file0")            = 0
[pid   424] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   424] ioctl(6, LOOP_CLR_FD)       = 0
[pid   424] close(6)                    = 0
[pid   424] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   424] write(6, "#! ./file1\n", 11) = 11
[pid   424] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   424] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   424] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=18, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=4} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   31.919102][  T424] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   31.939658][  T425] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-424: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./16/file0")         = 0
[pid   343] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./16/binderfs")     = 0
[pid   343] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./16/cgroup.net")   = 0
[pid   343] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./16/cgroup.cpu")   = 0
[pid   343] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./16/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./16")               = 0
[pid   343] mkdir("./17", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 19
./strace-static-x86_64: Process 429 attached
[pid   429] set_robust_list(0x55556f72b660, 24) = 0
[pid   429] chdir("./17")               = 0
[pid   429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   429] setpgid(0, 0)               = 0
[pid   429] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   429] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   429] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   429] write(3, "1000", 4)         = 4
[pid   429] close(3)                    = 0
[pid   429] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   429] symlink("/dev/binderfs", "./binderfs") = 0
[pid   429] write(1, "executing program\n", 18) = 18
[pid   429] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   429] ioctl(3, VHOST_SET_OWNERexecuting program
, 0) = 0
[pid   429] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   429] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   429] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   429] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   429] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   429] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   429] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   429] memfd_create("syzkaller", 0) = 5
[pid   429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   429] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   429] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   429] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   429] close(5)                    = 0
[pid   429] close(6)                    = 0
[pid   429] mkdir("./file0", 0777)      = 0
[pid   429] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   429] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   429] chdir("./file0")            = 0
[pid   429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   429] ioctl(6, LOOP_CLR_FD)       = 0
[pid   429] close(6)                    = 0
[pid   429] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   429] write(6, "#! ./file1\n", 11) = 11
[pid   429] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   429] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   429] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=19, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=0} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   32.048592][  T429] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   32.067250][  T430] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-429: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./17/file0")         = 0
[pid   343] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./17/binderfs")     = 0
[pid   343] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./17/cgroup.net")   = 0
[pid   343] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./17/cgroup.cpu")   = 0
[pid   343] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./17/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./17")               = 0
[pid   343] mkdir("./18", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 434 attached
 <unfinished ...>
[pid   434] set_robust_list(0x55556f72b660, 24) = 0
[pid   434] chdir("./18")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 20
[pid   434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   434] setpgid(0, 0)               = 0
[pid   434] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   434] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   434] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   434] write(3, "1000", 4)         = 4
[pid   434] close(3)                    = 0
[pid   434] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   434] symlink("/dev/binderfs", "./binderfs") = 0
[pid   434] write(1, "executing program\n", 18executing program
) = 18
[pid   434] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   434] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   434] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   434] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   434] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   434] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   434] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   434] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   434] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   434] memfd_create("syzkaller", 0) = 5
[pid   434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   434] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   434] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   434] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   434] close(5)                    = 0
[pid   434] close(6)                    = 0
[pid   434] mkdir("./file0", 0777)      = 0
[pid   434] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   434] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   434] chdir("./file0")            = 0
[pid   434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   434] ioctl(6, LOOP_CLR_FD)       = 0
[pid   434] close(6)                    = 0
[pid   434] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   434] write(6, "#! ./file1\n", 11) = 11
[pid   434] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   434] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   434] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=20, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   32.217488][  T434] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   32.231967][  T434] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./18/file0")         = 0
[pid   343] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./18/binderfs")     = 0
[pid   343] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./18/cgroup.net")   = 0
[pid   343] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./18/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./18/cgroup.cpu")   = 0
[pid   343] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./18/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./18/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./18")               = 0
[pid   343] mkdir("./19", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 439 attached
 <unfinished ...>
[pid   439] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 21
[pid   439] <... set_robust_list resumed>) = 0
[pid   439] chdir("./19")               = 0
[pid   439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   439] setpgid(0, 0)               = 0
[pid   439] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   439] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   439] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   439] write(3, "1000", 4)         = 4
[pid   439] close(3)                    = 0
[pid   439] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   439] symlink("/dev/binderfs", "./binderfs") = 0
[pid   439] write(1, "executing program\n", 18executing program
) = 18
[pid   439] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   439] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   439] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   439] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   439] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   439] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   439] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   439] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   439] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   439] memfd_create("syzkaller", 0) = 5
[pid   439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   439] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   439] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   439] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   439] close(5)                    = 0
[pid   439] close(6)                    = 0
[pid   439] mkdir("./file0", 0777)      = 0
[pid   439] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   439] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   439] chdir("./file0")            = 0
[pid   439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   439] ioctl(6, LOOP_CLR_FD)       = 0
[pid   439] close(6)                    = 0
[pid   439] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   439] write(6, "#! ./file1\n", 11) = 11
[pid   439] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   439] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   439] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=21, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   32.457729][  T439] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   32.468966][  T439] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./19/file0")         = 0
[pid   343] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./19/binderfs")     = 0
[pid   343] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./19/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./19/cgroup.net")   = 0
[pid   343] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./19/cgroup.cpu")   = 0
[pid   343] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./19/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./19/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./19")               = 0
[pid   343] mkdir("./20", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 444 attached
 <unfinished ...>
[pid   444] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 22
[pid   444] <... set_robust_list resumed>) = 0
[pid   444] chdir("./20")               = 0
[pid   444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   444] setpgid(0, 0)               = 0
[pid   444] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   444] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   444] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   444] write(3, "1000", 4)         = 4
[pid   444] close(3)                    = 0
[pid   444] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   444] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   444] write(1, "executing program\n", 18) = 18
[pid   444] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   444] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   444] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   444] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   444] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   444] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   444] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   444] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   444] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   444] memfd_create("syzkaller", 0) = 5
[pid   444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   444] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   444] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   444] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   444] close(5)                    = 0
[pid   444] close(6)                    = 0
[pid   444] mkdir("./file0", 0777)      = 0
[pid   444] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   444] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   444] chdir("./file0")            = 0
[pid   444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   444] ioctl(6, LOOP_CLR_FD)       = 0
[pid   444] close(6)                    = 0
[pid   444] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   444] write(6, "#! ./file1\n", 11) = 11
[pid   444] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   444] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   444] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=22, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   32.641926][  T444] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   32.662239][  T445] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-444: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./20/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./20/file0")         = 0
[pid   343] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./20/binderfs")     = 0
[pid   343] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./20/cgroup.net")   = 0
[pid   343] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./20/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./20/cgroup.cpu")   = 0
[pid   343] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./20/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./20/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./20")               = 0
[pid   343] mkdir("./21", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 449 attached
 <unfinished ...>
[pid   449] set_robust_list(0x55556f72b660, 24) = 0
[pid   449] chdir("./21")               = 0
[pid   449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   449] setpgid(0, 0)               = 0
[pid   449] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   449] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   449] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   449] write(3, "1000", 4)         = 4
[pid   449] close(3)                    = 0
[pid   449] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   449] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   449] write(1, "executing program\n", 18) = 18
[pid   449] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   449] ioctl(3, VHOST_SET_OWNER <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 23
[pid   449] <... ioctl resumed>, 0)     = 0
[pid   449] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   449] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   449] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   449] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   449] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   449] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   449] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   449] memfd_create("syzkaller", 0) = 5
[pid   449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   449] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   449] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   449] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   449] close(5)                    = 0
[pid   449] close(6)                    = 0
[pid   449] mkdir("./file0", 0777)      = 0
[pid   449] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   449] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   449] chdir("./file0")            = 0
[pid   449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   449] ioctl(6, LOOP_CLR_FD)       = 0
[pid   449] close(6)                    = 0
[pid   449] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   449] write(6, "#! ./file1\n", 11) = 11
[pid   449] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   449] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   449] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=23, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   32.847716][  T449] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   32.864259][  T449] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./21/file0")         = 0
[pid   343] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./21/binderfs")     = 0
[pid   343] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./21/cgroup.net")   = 0
[pid   343] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./21/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./21/cgroup.cpu")   = 0
[pid   343] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./21/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./21")               = 0
[pid   343] mkdir("./22", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 454 attached
 <unfinished ...>
[pid   454] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 24
[pid   454] <... set_robust_list resumed>) = 0
[pid   454] chdir("./22")               = 0
[pid   454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   454] setpgid(0, 0)               = 0
[pid   454] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   454] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   454] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   454] write(3, "1000", 4)         = 4
[pid   454] close(3)                    = 0
[pid   454] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   454] symlink("/dev/binderfs", "./binderfs") = 0
[pid   454] write(1, "executing program\n", 18executing program
) = 18
[pid   454] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   454] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   454] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   454] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   454] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   454] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   454] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   454] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   454] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   454] memfd_create("syzkaller", 0) = 5
[pid   454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   454] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   454] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   454] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   454] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   454] close(5)                    = 0
[pid   454] close(6)                    = 0
[pid   454] mkdir("./file0", 0777)      = 0
[pid   454] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   454] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   454] chdir("./file0")            = 0
[pid   454] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   454] ioctl(6, LOOP_CLR_FD)       = 0
[pid   454] close(6)                    = 0
[pid   454] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   454] write(6, "#! ./file1\n", 11) = 11
[pid   454] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   454] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   454] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=24, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   33.000720][  T454] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   33.020541][  T455] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-454: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./22/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./22/file0")         = 0
[pid   343] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./22/binderfs")     = 0
[pid   343] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./22/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./22/cgroup.net")   = 0
[pid   343] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./22/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./22/cgroup.cpu")   = 0
[pid   343] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./22/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./22")               = 0
[pid   343] mkdir("./23", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 459 attached
, child_tidptr=0x55556f72b650) = 25
[pid   459] set_robust_list(0x55556f72b660, 24) = 0
[pid   459] chdir("./23")               = 0
[pid   459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   459] setpgid(0, 0)               = 0
[pid   459] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   459] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   459] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   459] write(3, "1000", 4)         = 4
[pid   459] close(3)                    = 0
[pid   459] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   459] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   459] write(1, "executing program\n", 18) = 18
[pid   459] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   459] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   459] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   459] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   459] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   459] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   459] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   459] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   459] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   459] memfd_create("syzkaller", 0) = 5
[pid   459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   459] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   459] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   459] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   459] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   459] close(5)                    = 0
[pid   459] close(6)                    = 0
[pid   459] mkdir("./file0", 0777)      = 0
[pid   459] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   459] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   459] chdir("./file0")            = 0
[pid   459] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   459] ioctl(6, LOOP_CLR_FD)       = 0
[pid   459] close(6)                    = 0
[pid   459] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   459] write(6, "#! ./file1\n", 11) = 11
[pid   459] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   459] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   459] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=25, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   33.209137][  T459] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   33.229589][  T460] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-459: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./23/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./23/file0")         = 0
[pid   343] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./23/binderfs")     = 0
[pid   343] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./23/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./23/cgroup.net")   = 0
[pid   343] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./23/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./23/cgroup.cpu")   = 0
[pid   343] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./23/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./23/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./23")               = 0
[pid   343] mkdir("./24", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 464 attached
 <unfinished ...>
[pid   464] set_robust_list(0x55556f72b660, 24) = 0
[pid   464] chdir("./24" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 26
[pid   464] <... chdir resumed>)        = 0
[pid   464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   464] setpgid(0, 0)               = 0
[pid   464] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   464] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   464] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   464] write(3, "1000", 4)         = 4
[pid   464] close(3)                    = 0
[pid   464] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   464] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   464] write(1, "executing program\n", 18) = 18
[pid   464] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   464] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   464] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   464] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   464] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   464] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   464] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   464] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   464] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   464] memfd_create("syzkaller", 0) = 5
[pid   464] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   464] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   464] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   464] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   464] close(5)                    = 0
[pid   464] close(6)                    = 0
[pid   464] mkdir("./file0", 0777)      = 0
[pid   464] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   464] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   464] chdir("./file0")            = 0
[pid   464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   464] ioctl(6, LOOP_CLR_FD)       = 0
[pid   464] close(6)                    = 0
[pid   464] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   464] write(6, "#! ./file1\n", 11) = 11
[pid   464] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   464] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   464] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=26, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   33.401332][  T464] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   33.420972][  T465] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-464: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./24/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./24/file0")         = 0
[pid   343] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./24/binderfs")     = 0
[pid   343] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./24/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./24/cgroup.net")   = 0
[pid   343] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./24/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./24/cgroup.cpu")   = 0
[pid   343] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./24/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./24/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./24")               = 0
[pid   343] mkdir("./25", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 469 attached
, child_tidptr=0x55556f72b650) = 27
[pid   469] set_robust_list(0x55556f72b660, 24) = 0
[pid   469] chdir("./25")               = 0
[pid   469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   469] setpgid(0, 0)               = 0
[pid   469] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   469] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   469] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   469] write(3, "1000", 4)         = 4
[pid   469] close(3)                    = 0
[pid   469] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   469] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   469] write(1, "executing program\n", 18) = 18
[pid   469] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   469] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   469] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   469] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   469] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   469] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   469] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   469] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   469] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   469] memfd_create("syzkaller", 0) = 5
[pid   469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   469] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   469] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   469] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   469] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   469] close(5)                    = 0
[pid   469] close(6)                    = 0
[pid   469] mkdir("./file0", 0777)      = 0
[pid   469] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   469] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   469] chdir("./file0")            = 0
[pid   469] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   469] ioctl(6, LOOP_CLR_FD)       = 0
[pid   469] close(6)                    = 0
[pid   469] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   469] write(6, "#! ./file1\n", 11) = 11
[pid   469] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   469] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   469] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=27, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   33.601294][  T469] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   33.617990][  T469] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./25/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./25/file0")         = 0
[pid   343] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./25/binderfs")     = 0
[pid   343] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./25/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./25/cgroup.net")   = 0
[pid   343] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./25/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./25/cgroup.cpu")   = 0
[pid   343] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./25/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./25/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./25")               = 0
[pid   343] mkdir("./26", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 474 attached
 <unfinished ...>
[pid   474] set_robust_list(0x55556f72b660, 24) = 0
[pid   474] chdir("./26")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 28
[pid   474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   474] setpgid(0, 0)               = 0
[pid   474] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   474] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   474] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   474] write(3, "1000", 4)         = 4
[pid   474] close(3)                    = 0
[pid   474] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   474] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   474] write(1, "executing program\n", 18) = 18
[pid   474] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   474] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   474] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   474] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   474] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   474] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   474] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   474] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   474] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   474] memfd_create("syzkaller", 0) = 5
[pid   474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   474] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   474] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   474] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   474] close(5)                    = 0
[pid   474] close(6)                    = 0
[pid   474] mkdir("./file0", 0777)      = 0
[pid   474] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   474] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   474] chdir("./file0")            = 0
[pid   474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   474] ioctl(6, LOOP_CLR_FD)       = 0
[pid   474] close(6)                    = 0
[pid   474] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   474] write(6, "#! ./file1\n", 11) = 11
[pid   474] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   474] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   474] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=28, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   33.807782][  T474] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   33.828345][  T475] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-474: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./26/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./26/file0")         = 0
[pid   343] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./26/binderfs")     = 0
[pid   343] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./26/cgroup.net")   = 0
[pid   343] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./26/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./26/cgroup.cpu")   = 0
[pid   343] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./26/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./26/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./26")               = 0
[pid   343] mkdir("./27", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 479 attached
, child_tidptr=0x55556f72b650) = 29
[pid   479] set_robust_list(0x55556f72b660, 24) = 0
[pid   479] chdir("./27")               = 0
[pid   479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   479] setpgid(0, 0)               = 0
[pid   479] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   479] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   479] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   479] write(3, "1000", 4)         = 4
[pid   479] close(3)                    = 0
[pid   479] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   479] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   479] write(1, "executing program\n", 18) = 18
[pid   479] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   479] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   479] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   479] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   479] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   479] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   479] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   479] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   479] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   479] memfd_create("syzkaller", 0) = 5
[pid   479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   479] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   479] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   479] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   479] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   479] close(5)                    = 0
[pid   479] close(6)                    = 0
[pid   479] mkdir("./file0", 0777)      = 0
[pid   479] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   479] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   479] chdir("./file0")            = 0
[pid   479] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   479] ioctl(6, LOOP_CLR_FD)       = 0
[pid   479] close(6)                    = 0
[pid   479] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   479] write(6, "#! ./file1\n", 11) = 11
[pid   479] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   479] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   479] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=29, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   33.999650][  T479] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   34.019584][  T480] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-479: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./27/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./27/file0")         = 0
[pid   343] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./27/binderfs")     = 0
[pid   343] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./27/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./27/cgroup.net")   = 0
[pid   343] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./27/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./27/cgroup.cpu")   = 0
[pid   343] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./27/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./27/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./27")               = 0
[pid   343] mkdir("./28", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 484 attached
, child_tidptr=0x55556f72b650) = 30
[pid   484] set_robust_list(0x55556f72b660, 24) = 0
[pid   484] chdir("./28")               = 0
[pid   484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   484] setpgid(0, 0)               = 0
[pid   484] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   484] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   484] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   484] write(3, "1000", 4)         = 4
[pid   484] close(3)                    = 0
[pid   484] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   484] symlink("/dev/binderfs", "./binderfs") = 0
[pid   484] write(1, "executing program\n", 18executing program
) = 18
[pid   484] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   484] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   484] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   484] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   484] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   484] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   484] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   484] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   484] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   484] memfd_create("syzkaller", 0) = 5
[pid   484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   484] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   484] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   484] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   484] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   484] close(5)                    = 0
[pid   484] close(6)                    = 0
[pid   484] mkdir("./file0", 0777)      = 0
[pid   484] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   484] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   484] chdir("./file0")            = 0
[pid   484] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   484] ioctl(6, LOOP_CLR_FD)       = 0
[pid   484] close(6)                    = 0
[pid   484] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   484] write(6, "#! ./file1\n", 11) = 11
[pid   484] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   484] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   484] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=30, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[pid   343] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   34.161815][  T484] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   34.179674][  T484] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./28/file0")         = 0
[pid   343] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./28/binderfs")     = 0
[pid   343] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./28/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./28/cgroup.net")   = 0
[pid   343] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./28/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./28/cgroup.cpu")   = 0
[pid   343] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./28/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./28/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./28")               = 0
[pid   343] mkdir("./29", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 489 attached
, child_tidptr=0x55556f72b650) = 31
[pid   489] set_robust_list(0x55556f72b660, 24) = 0
[pid   489] chdir("./29")               = 0
[pid   489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   489] setpgid(0, 0)               = 0
[pid   489] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   489] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   489] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   489] write(3, "1000", 4)         = 4
[pid   489] close(3)                    = 0
[pid   489] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   489] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   489] write(1, "executing program\n", 18) = 18
[pid   489] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   489] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   489] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   489] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   489] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   489] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   489] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   489] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   489] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   489] memfd_create("syzkaller", 0) = 5
[pid   489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   489] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   489] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   489] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   489] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   489] close(5)                    = 0
[pid   489] close(6)                    = 0
[pid   489] mkdir("./file0", 0777)      = 0
[pid   489] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   489] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   489] chdir("./file0")            = 0
[pid   489] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   489] ioctl(6, LOOP_CLR_FD)       = 0
[pid   489] close(6)                    = 0
[pid   489] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   489] write(6, "#! ./file1\n", 11) = 11
[pid   489] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   489] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   489] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=31, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   34.297918][  T489] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   34.314648][  T489] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./29/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./29/file0")         = 0
[pid   343] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./29/binderfs")     = 0
[pid   343] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./29/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./29/cgroup.net")   = 0
[pid   343] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./29/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./29/cgroup.cpu")   = 0
[pid   343] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./29/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./29/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./29")               = 0
[pid   343] mkdir("./30", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 494 attached
 <unfinished ...>
[pid   494] set_robust_list(0x55556f72b660, 24) = 0
[pid   494] chdir("./30")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 32
[pid   494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   494] setpgid(0, 0)               = 0
[pid   494] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   494] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   494] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   494] write(3, "1000", 4)         = 4
[pid   494] close(3)                    = 0
[pid   494] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   494] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   494] write(1, "executing program\n", 18) = 18
[pid   494] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   494] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   494] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   494] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   494] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   494] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   494] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   494] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   494] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   494] memfd_create("syzkaller", 0) = 5
[pid   494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   494] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   494] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   494] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   494] close(5)                    = 0
[pid   494] close(6)                    = 0
[pid   494] mkdir("./file0", 0777)      = 0
[pid   494] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   494] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   494] chdir("./file0")            = 0
[pid   494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   494] ioctl(6, LOOP_CLR_FD)       = 0
[pid   494] close(6)                    = 0
[pid   494] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   494] write(6, "#! ./file1\n", 11) = 11
[pid   494] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   494] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   494] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=32, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   34.477823][  T494] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   34.498761][  T495] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-494: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./30/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./30/file0")         = 0
[pid   343] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./30/binderfs")     = 0
[pid   343] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./30/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./30/cgroup.net")   = 0
[pid   343] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./30/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./30/cgroup.cpu")   = 0
[pid   343] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./30/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./30/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./30")               = 0
[pid   343] mkdir("./31", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 499 attached
, child_tidptr=0x55556f72b650) = 33
[pid   499] set_robust_list(0x55556f72b660, 24) = 0
[pid   499] chdir("./31")               = 0
[pid   499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   499] setpgid(0, 0)               = 0
[pid   499] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   499] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   499] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   499] write(3, "1000", 4)         = 4
[pid   499] close(3)                    = 0
[pid   499] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   499] symlink("/dev/binderfs", "./binderfs") = 0
[pid   499] write(1, "executing program\n", 18executing program
) = 18
[pid   499] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   499] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   499] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   499] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   499] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   499] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   499] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   499] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   499] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   499] memfd_create("syzkaller", 0) = 5
[pid   499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   499] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   499] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   499] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   499] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   499] close(5)                    = 0
[pid   499] close(6)                    = 0
[pid   499] mkdir("./file0", 0777)      = 0
[pid   499] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   499] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   499] chdir("./file0")            = 0
[pid   499] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   499] ioctl(6, LOOP_CLR_FD)       = 0
[pid   499] close(6)                    = 0
[pid   499] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   499] write(6, "#! ./file1\n", 11) = 11
[pid   499] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   499] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   499] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=33, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   34.697750][  T499] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   34.729179][  T500] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-499: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./31/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./31/file0")         = 0
[pid   343] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./31/binderfs")     = 0
[pid   343] umount2("./31/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./31/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./31/cgroup.net")   = 0
[pid   343] umount2("./31/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./31/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./31/cgroup.cpu")   = 0
[pid   343] umount2("./31/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./31/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./31/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./31")               = 0
[pid   343] mkdir("./32", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 504 attached
, child_tidptr=0x55556f72b650) = 34
[pid   504] set_robust_list(0x55556f72b660, 24) = 0
[pid   504] chdir("./32")               = 0
[pid   504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   504] setpgid(0, 0)               = 0
[pid   504] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   504] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   504] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   504] write(3, "1000", 4)         = 4
[pid   504] close(3)                    = 0
[pid   504] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   504] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   504] write(1, "executing program\n", 18) = 18
[pid   504] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   504] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   504] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   504] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   504] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   504] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   504] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   504] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   504] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   504] memfd_create("syzkaller", 0) = 5
[pid   504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   504] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   504] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   504] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   504] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   504] close(5)                    = 0
[pid   504] close(6)                    = 0
[pid   504] mkdir("./file0", 0777)      = 0
[pid   504] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   504] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   504] chdir("./file0")            = 0
[pid   504] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   504] ioctl(6, LOOP_CLR_FD)       = 0
[pid   504] close(6)                    = 0
[pid   504] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   504] write(6, "#! ./file1\n", 11) = 11
[pid   504] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   504] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   504] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=34, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   34.887833][  T504] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   34.907735][  T505] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-504: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./32/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./32/file0")         = 0
[pid   343] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./32/binderfs")     = 0
[pid   343] umount2("./32/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./32/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./32/cgroup.net")   = 0
[pid   343] umount2("./32/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./32/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./32/cgroup.cpu")   = 0
[pid   343] umount2("./32/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./32/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./32/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./32")               = 0
[pid   343] mkdir("./33", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 509 attached
 <unfinished ...>
[pid   509] set_robust_list(0x55556f72b660, 24) = 0
[pid   509] chdir("./33")               = 0
[pid   509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   509] setpgid(0, 0)               = 0
[pid   509] symlink("/syzcgroup/unified/syz0", "./cgroup" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 35
[pid   509] <... symlink resumed>)      = 0
[pid   509] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   509] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   509] write(3, "1000", 4)         = 4
[pid   509] close(3)                    = 0
[pid   509] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   509] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   509] write(1, "executing program\n", 18) = 18
[pid   509] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   509] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   509] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   509] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   509] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   509] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   509] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   509] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   509] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   509] memfd_create("syzkaller", 0) = 5
[pid   509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   509] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   509] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   509] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   509] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   509] close(5)                    = 0
[pid   509] close(6)                    = 0
[pid   509] mkdir("./file0", 0777)      = 0
[pid   509] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   509] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   509] chdir("./file0")            = 0
[pid   509] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   509] ioctl(6, LOOP_CLR_FD)       = 0
[pid   509] close(6)                    = 0
[pid   509] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   509] write(6, "#! ./file1\n", 11) = 11
[pid   509] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   509] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   509] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=35, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   35.047689][  T509] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   35.064280][  T509] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./33/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./33/file0")         = 0
[pid   343] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./33/binderfs")     = 0
[pid   343] umount2("./33/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./33/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./33/cgroup.net")   = 0
[pid   343] umount2("./33/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./33/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./33/cgroup.cpu")   = 0
[pid   343] umount2("./33/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./33/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./33/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./33")               = 0
[pid   343] mkdir("./34", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 514 attached
 <unfinished ...>
[pid   514] set_robust_list(0x55556f72b660, 24) = 0
[pid   514] chdir("./34")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 36
[pid   514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   514] setpgid(0, 0)               = 0
[pid   514] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   514] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   514] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   514] write(3, "1000", 4)         = 4
[pid   514] close(3)                    = 0
[pid   514] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   514] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   514] write(1, "executing program\n", 18) = 18
[pid   514] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   514] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   514] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   514] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   514] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   514] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   514] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   514] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   514] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   514] memfd_create("syzkaller", 0) = 5
[pid   514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   514] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   514] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   514] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   514] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   514] close(5)                    = 0
[pid   514] close(6)                    = 0
[pid   514] mkdir("./file0", 0777)      = 0
[pid   514] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   514] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   514] chdir("./file0")            = 0
[pid   514] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   514] ioctl(6, LOOP_CLR_FD)       = 0
[pid   514] close(6)                    = 0
[pid   514] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   514] write(6, "#! ./file1\n", 11) = 11
[pid   514] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   514] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   514] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=36, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   35.257181][  T514] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   35.278442][  T515] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-514: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./34/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./34/file0")         = 0
[pid   343] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./34/binderfs")     = 0
[pid   343] umount2("./34/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./34/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./34/cgroup.net")   = 0
[pid   343] umount2("./34/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./34/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./34/cgroup.cpu")   = 0
[pid   343] umount2("./34/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./34/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./34/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./34")               = 0
[pid   343] mkdir("./35", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 519 attached
 <unfinished ...>
[pid   519] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 37
[pid   519] <... set_robust_list resumed>) = 0
[pid   519] chdir("./35")               = 0
[pid   519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   519] setpgid(0, 0)               = 0
[pid   519] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   519] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   519] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   519] write(3, "1000", 4)         = 4
[pid   519] close(3)                    = 0
[pid   519] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   519] symlink("/dev/binderfs", "./binderfs") = 0
[pid   519] write(1, "executing program\n", 18executing program
) = 18
[pid   519] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   519] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   519] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   519] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   519] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   519] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   519] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   519] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   519] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   519] memfd_create("syzkaller", 0) = 5
[pid   519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   519] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   519] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   519] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   519] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   519] close(5)                    = 0
[pid   519] close(6)                    = 0
[pid   519] mkdir("./file0", 0777)      = 0
[pid   519] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   519] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   519] chdir("./file0")            = 0
[pid   519] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   519] ioctl(6, LOOP_CLR_FD)       = 0
[pid   519] close(6)                    = 0
[pid   519] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   519] write(6, "#! ./file1\n", 11) = 11
[pid   519] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   519] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   519] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=37, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   35.487773][  T519] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   35.501384][  T519] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./35/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./35/file0")         = 0
[pid   343] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./35/binderfs")     = 0
[pid   343] umount2("./35/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./35/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./35/cgroup.net")   = 0
[pid   343] umount2("./35/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./35/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./35/cgroup.cpu")   = 0
[pid   343] umount2("./35/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./35/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./35/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./35")               = 0
[pid   343] mkdir("./36", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 524 attached
 <unfinished ...>
[pid   524] set_robust_list(0x55556f72b660, 24) = 0
[pid   524] chdir("./36" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 38
[pid   524] <... chdir resumed>)        = 0
[pid   524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   524] setpgid(0, 0)               = 0
[pid   524] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   524] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   524] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   524] write(3, "1000", 4)         = 4
[pid   524] close(3)                    = 0
[pid   524] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   524] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   524] write(1, "executing program\n", 18) = 18
[pid   524] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   524] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   524] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   524] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   524] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   524] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   524] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   524] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   524] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   524] memfd_create("syzkaller", 0) = 5
[pid   524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   524] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   524] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   524] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   524] close(5)                    = 0
[pid   524] close(6)                    = 0
[pid   524] mkdir("./file0", 0777)      = 0
[pid   524] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   524] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   524] chdir("./file0")            = 0
[pid   524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   524] ioctl(6, LOOP_CLR_FD)       = 0
[pid   524] close(6)                    = 0
[pid   524] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   524] write(6, "#! ./file1\n", 11) = 11
[pid   524] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   524] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   524] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=38, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   35.637724][  T524] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   35.657951][  T525] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-524: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./36/file0")         = 0
[pid   343] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./36/binderfs")     = 0
[pid   343] umount2("./36/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./36/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./36/cgroup.net")   = 0
[pid   343] umount2("./36/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./36/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./36/cgroup.cpu")   = 0
[pid   343] umount2("./36/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./36/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./36/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./36")               = 0
[pid   343] mkdir("./37", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 529 attached
, child_tidptr=0x55556f72b650) = 39
[pid   529] set_robust_list(0x55556f72b660, 24) = 0
[pid   529] chdir("./37")               = 0
[pid   529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   529] setpgid(0, 0)               = 0
[pid   529] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   529] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   529] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   529] write(3, "1000", 4)         = 4
[pid   529] close(3)                    = 0
[pid   529] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   529] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   529] write(1, "executing program\n", 18) = 18
[pid   529] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   529] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   529] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   529] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   529] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   529] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   529] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   529] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   529] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   529] memfd_create("syzkaller", 0) = 5
[pid   529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   529] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   529] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   529] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   529] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   529] close(5)                    = 0
[pid   529] close(6)                    = 0
[pid   529] mkdir("./file0", 0777)      = 0
[pid   529] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   529] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   529] chdir("./file0")            = 0
[pid   529] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   529] ioctl(6, LOOP_CLR_FD)       = 0
[pid   529] close(6)                    = 0
[pid   529] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   529] write(6, "#! ./file1\n", 11) = 11
[pid   529] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   529] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   529] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=39, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   35.917940][  T529] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   35.933667][  T530] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-529: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./37/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./37/file0")         = 0
[pid   343] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./37/binderfs")     = 0
[pid   343] umount2("./37/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./37/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./37/cgroup.net")   = 0
[pid   343] umount2("./37/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./37/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./37/cgroup.cpu")   = 0
[pid   343] umount2("./37/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./37/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./37/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./37")               = 0
[pid   343] mkdir("./38", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 534 attached
, child_tidptr=0x55556f72b650) = 40
[pid   534] set_robust_list(0x55556f72b660, 24) = 0
[pid   534] chdir("./38")               = 0
[pid   534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   534] setpgid(0, 0)               = 0
[pid   534] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   534] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   534] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   534] write(3, "1000", 4)         = 4
[pid   534] close(3)                    = 0
[pid   534] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   534] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   534] write(1, "executing program\n", 18) = 18
[pid   534] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   534] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   534] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   534] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   534] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   534] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   534] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   534] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   534] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   534] memfd_create("syzkaller", 0) = 5
[pid   534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   534] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   534] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   534] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   534] close(5)                    = 0
[pid   534] close(6)                    = 0
[pid   534] mkdir("./file0", 0777)      = 0
[pid   534] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   534] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   534] chdir("./file0")            = 0
[pid   534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   534] ioctl(6, LOOP_CLR_FD)       = 0
[pid   534] close(6)                    = 0
[pid   534] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   534] write(6, "#! ./file1\n", 11) = 11
[pid   534] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   534] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   534] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=40, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   36.069423][  T534] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   36.089099][  T535] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-534: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./38/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./38/file0")         = 0
[pid   343] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./38/binderfs")     = 0
[pid   343] umount2("./38/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./38/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./38/cgroup.net")   = 0
[pid   343] umount2("./38/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./38/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./38/cgroup.cpu")   = 0
[pid   343] umount2("./38/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./38/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./38/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./38")               = 0
[pid   343] mkdir("./39", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 539 attached
, child_tidptr=0x55556f72b650) = 41
[pid   539] set_robust_list(0x55556f72b660, 24) = 0
[pid   539] chdir("./39")               = 0
[pid   539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   539] setpgid(0, 0)               = 0
[pid   539] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   539] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   539] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   539] write(3, "1000", 4)         = 4
[pid   539] close(3)                    = 0
[pid   539] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   539] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   539] write(1, "executing program\n", 18) = 18
[pid   539] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   539] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   539] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   539] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   539] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   539] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   539] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   539] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   539] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   539] memfd_create("syzkaller", 0) = 5
[pid   539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   539] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   539] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   539] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   539] close(5)                    = 0
[pid   539] close(6)                    = 0
[pid   539] mkdir("./file0", 0777)      = 0
[pid   539] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   539] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   539] chdir("./file0")            = 0
[pid   539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   539] ioctl(6, LOOP_CLR_FD)       = 0
[pid   539] close(6)                    = 0
[pid   539] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   539] write(6, "#! ./file1\n", 11) = 11
[pid   539] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   539] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   539] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=41, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   36.227804][  T539] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   36.248372][  T540] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-539: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./39/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./39/file0")         = 0
[pid   343] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./39/binderfs")     = 0
[pid   343] umount2("./39/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./39/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./39/cgroup.net")   = 0
[pid   343] umount2("./39/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./39/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./39/cgroup.cpu")   = 0
[pid   343] umount2("./39/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./39/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./39/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./39")               = 0
[pid   343] mkdir("./40", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 42
./strace-static-x86_64: Process 544 attached
[pid   544] set_robust_list(0x55556f72b660, 24) = 0
[pid   544] chdir("./40")               = 0
[pid   544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   544] setpgid(0, 0)               = 0
[pid   544] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   544] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   544] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   544] write(3, "1000", 4)         = 4
[pid   544] close(3)                    = 0
[pid   544] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   544] symlink("/dev/binderfs", "./binderfs") = 0
[pid   544] write(1, "executing program\n", 18executing program
) = 18
[pid   544] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   544] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   544] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   544] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   544] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   544] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   544] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   544] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   544] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   544] memfd_create("syzkaller", 0) = 5
[pid   544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   544] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   544] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   544] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   544] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   544] close(5)                    = 0
[pid   544] close(6)                    = 0
[pid   544] mkdir("./file0", 0777)      = 0
[pid   544] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   544] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   544] chdir("./file0")            = 0
[pid   544] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   544] ioctl(6, LOOP_CLR_FD)       = 0
[pid   544] close(6)                    = 0
[pid   544] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   544] write(6, "#! ./file1\n", 11) = 11
[pid   544] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   544] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   544] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=42, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   36.517697][  T544] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   36.549017][  T545] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-544: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./40/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./40/file0")         = 0
[pid   343] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./40/binderfs")     = 0
[pid   343] umount2("./40/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./40/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./40/cgroup.net")   = 0
[pid   343] umount2("./40/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./40/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./40/cgroup.cpu")   = 0
[pid   343] umount2("./40/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./40/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./40/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./40")               = 0
[pid   343] mkdir("./41", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FDexecuting program
)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 43
./strace-static-x86_64: Process 549 attached
[pid   549] set_robust_list(0x55556f72b660, 24) = 0
[pid   549] chdir("./41")               = 0
[pid   549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   549] setpgid(0, 0)               = 0
[pid   549] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   549] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   549] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   549] write(3, "1000", 4)         = 4
[pid   549] close(3)                    = 0
[pid   549] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] symlink("/dev/binderfs", "./binderfs") = 0
[pid   549] write(1, "executing program\n", 18) = 18
[pid   549] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   549] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   549] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   549] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   549] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   549] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   549] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   549] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   549] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   549] memfd_create("syzkaller", 0) = 5
[pid   549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   549] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   549] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   549] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   549] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   549] close(5)                    = 0
[pid   549] close(6)                    = 0
[pid   549] mkdir("./file0", 0777)      = 0
[pid   549] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   549] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   549] chdir("./file0")            = 0
[pid   549] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   549] ioctl(6, LOOP_CLR_FD)       = 0
[pid   549] close(6)                    = 0
[pid   549] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   549] write(6, "#! ./file1\n", 11) = 11
[pid   549] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   549] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   549] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=43, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   36.697748][  T549] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   36.714494][  T549] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./41/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./41/file0")         = 0
[pid   343] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./41/binderfs")     = 0
[pid   343] umount2("./41/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./41/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./41/cgroup.net")   = 0
[pid   343] umount2("./41/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./41/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./41/cgroup.cpu")   = 0
[pid   343] umount2("./41/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./41/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./41/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./41")               = 0
[pid   343] mkdir("./42", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 554 attached
 <unfinished ...>
[pid   554] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 44
[pid   554] <... set_robust_list resumed>) = 0
[pid   554] chdir("./42")               = 0
[pid   554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   554] setpgid(0, 0)               = 0
[pid   554] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   554] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   554] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   554] write(3, "1000", 4)         = 4
[pid   554] close(3)                    = 0
[pid   554] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   554] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   554] write(1, "executing program\n", 18) = 18
[pid   554] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   554] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   554] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   554] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   554] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   554] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   554] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   554] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   554] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   554] memfd_create("syzkaller", 0) = 5
[pid   554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   554] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   554] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   554] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   554] close(5)                    = 0
[pid   554] close(6)                    = 0
[pid   554] mkdir("./file0", 0777)      = 0
[pid   554] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   554] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   554] chdir("./file0")            = 0
[pid   554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   554] ioctl(6, LOOP_CLR_FD)       = 0
[pid   554] close(6)                    = 0
[pid   554] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   554] write(6, "#! ./file1\n", 11) = 11
[pid   554] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   554] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   554] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=44, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[pid   343] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./42/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./42/file0")         = 0
[pid   343] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./42/binderfs")     = 0
[pid   343] umount2("./42/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./42/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./42/cgroup.net")   = 0
[pid   343] umount2("./42/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./42/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./42/cgroup.cpu")   = 0
[pid   343] umount2("./42/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./42/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./42/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./42")               = 0
[pid   343] mkdir("./43", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 559 attached
 <unfinished ...>
[pid   559] set_robust_list(0x55556f72b660, 24) = 0
[pid   559] chdir("./43")               = 0
[pid   559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   559] setpgid(0, 0)               = 0
[   36.877779][  T554] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   36.894526][  T554] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   559] symlink("/syzcgroup/unified/syz0", "./cgroup" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 45
[pid   559] <... symlink resumed>)      = 0
[pid   559] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   559] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   559] write(3, "1000", 4)         = 4
[pid   559] close(3)                    = 0
[pid   559] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   559] symlink("/dev/binderfs", "./binderfs") = 0
[pid   559] write(1, "executing program\n", 18executing program
) = 18
[pid   559] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   559] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   559] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   559] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   559] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   559] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   559] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   559] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   559] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   559] memfd_create("syzkaller", 0) = 5
[pid   559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   559] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   559] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   559] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   559] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   559] close(5)                    = 0
[pid   559] close(6)                    = 0
[pid   559] mkdir("./file0", 0777)      = 0
[pid   559] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   559] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   559] chdir("./file0")            = 0
[pid   559] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   559] ioctl(6, LOOP_CLR_FD)       = 0
[pid   559] close(6)                    = 0
[pid   559] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   559] write(6, "#! ./file1\n", 11) = 11
[pid   559] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   559] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   559] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=45, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   36.993982][  T559] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   37.014205][  T560] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-559: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./43/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./43/file0")         = 0
[pid   343] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./43/binderfs")     = 0
[pid   343] umount2("./43/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./43/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./43/cgroup.net")   = 0
[pid   343] umount2("./43/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./43/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./43/cgroup.cpu")   = 0
[pid   343] umount2("./43/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./43/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./43/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./43")               = 0
[pid   343] mkdir("./44", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 564 attached
 <unfinished ...>
[pid   564] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 46
[pid   564] <... set_robust_list resumed>) = 0
[pid   564] chdir("./44")               = 0
[pid   564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   564] setpgid(0, 0)               = 0
[pid   564] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   564] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   564] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   564] write(3, "1000", 4)         = 4
[pid   564] close(3)                    = 0
[pid   564] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   564] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   564] write(1, "executing program\n", 18) = 18
[pid   564] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   564] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   564] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   564] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   564] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   564] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   564] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   564] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   564] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   564] memfd_create("syzkaller", 0) = 5
[pid   564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   564] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   564] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   564] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   564] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   564] close(5)                    = 0
[pid   564] close(6)                    = 0
[pid   564] mkdir("./file0", 0777)      = 0
[pid   564] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   564] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   564] chdir("./file0")            = 0
[pid   564] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   564] ioctl(6, LOOP_CLR_FD)       = 0
[pid   564] close(6)                    = 0
[pid   564] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   564] write(6, "#! ./file1\n", 11) = 11
[pid   564] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   564] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   564] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=46, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   37.162496][  T564] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   37.179218][  T564] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./44/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./44/file0")         = 0
[pid   343] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./44/binderfs")     = 0
[pid   343] umount2("./44/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./44/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./44/cgroup.net")   = 0
[pid   343] umount2("./44/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./44/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./44/cgroup.cpu")   = 0
[pid   343] umount2("./44/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./44/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./44/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./44")               = 0
[pid   343] mkdir("./45", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 569 attached
 <unfinished ...>
[pid   569] set_robust_list(0x55556f72b660, 24) = 0
[pid   569] chdir("./45")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 47
[pid   569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   569] setpgid(0, 0)               = 0
[pid   569] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   569] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   569] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   569] write(3, "1000", 4)         = 4
[pid   569] close(3)                    = 0
[pid   569] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   569] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   569] write(1, "executing program\n", 18) = 18
[pid   569] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   569] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   569] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   569] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   569] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   569] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   569] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   569] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   569] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   569] memfd_create("syzkaller", 0) = 5
[pid   569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   569] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   569] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   569] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   569] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   569] close(5)                    = 0
[pid   569] close(6)                    = 0
[pid   569] mkdir("./file0", 0777)      = 0
[pid   569] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   569] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   569] chdir("./file0")            = 0
[pid   569] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   569] ioctl(6, LOOP_CLR_FD)       = 0
[pid   569] close(6)                    = 0
[pid   569] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   569] write(6, "#! ./file1\n", 11) = 11
[pid   569] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   569] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   569] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=47, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   37.377940][  T569] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   37.397888][  T570] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-569: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./45/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./45/file0")         = 0
[pid   343] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./45/binderfs")     = 0
[pid   343] umount2("./45/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./45/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./45/cgroup.net")   = 0
[pid   343] umount2("./45/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./45/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./45/cgroup.cpu")   = 0
[pid   343] umount2("./45/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./45/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./45/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./45")               = 0
[pid   343] mkdir("./46", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 574 attached
, child_tidptr=0x55556f72b650) = 48
[pid   574] set_robust_list(0x55556f72b660, 24) = 0
[pid   574] chdir("./46")               = 0
[pid   574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   574] setpgid(0, 0)               = 0
[pid   574] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   574] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   574] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   574] write(3, "1000", 4)         = 4
[pid   574] close(3)                    = 0
[pid   574] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   574] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   574] write(1, "executing program\n", 18) = 18
[pid   574] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   574] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   574] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   574] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   574] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   574] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   574] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   574] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   574] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   574] memfd_create("syzkaller", 0) = 5
[pid   574] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   574] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   574] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   574] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   574] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   574] close(5)                    = 0
[pid   574] close(6)                    = 0
[pid   574] mkdir("./file0", 0777)      = 0
[pid   574] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   574] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   574] chdir("./file0")            = 0
[pid   574] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   574] ioctl(6, LOOP_CLR_FD)       = 0
[pid   574] close(6)                    = 0
[pid   574] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   574] write(6, "#! ./file1\n", 11) = 11
[pid   574] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   574] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   574] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=48, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   37.547914][  T574] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   37.566816][  T575] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-574: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./46/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./46/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./46/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./46/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./46/file0")         = 0
[pid   343] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./46/binderfs")     = 0
[pid   343] umount2("./46/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./46/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./46/cgroup.net")   = 0
[pid   343] umount2("./46/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./46/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./46/cgroup.cpu")   = 0
[pid   343] umount2("./46/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./46/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./46/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./46")               = 0
[pid   343] mkdir("./47", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 579 attached
 <unfinished ...>
[pid   579] set_robust_list(0x55556f72b660, 24) = 0
[pid   579] chdir("./47")               = 0
[pid   579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   579] setpgid(0, 0)               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 49
[pid   579] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   579] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   579] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   579] write(3, "1000", 4)         = 4
[pid   579] close(3)                    = 0
[pid   579] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   579] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   579] write(1, "executing program\n", 18) = 18
[pid   579] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   579] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   579] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   579] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   579] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   579] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   579] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   579] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   579] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   579] memfd_create("syzkaller", 0) = 5
[pid   579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   579] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   579] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   579] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   579] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   579] close(5)                    = 0
[pid   579] close(6)                    = 0
[pid   579] mkdir("./file0", 0777)      = 0
[pid   579] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   579] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   579] chdir("./file0")            = 0
[pid   579] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   579] ioctl(6, LOOP_CLR_FD)       = 0
[pid   579] close(6)                    = 0
[pid   579] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   579] write(6, "#! ./file1\n", 11) = 11
[pid   579] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   579] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   579] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=49, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   37.757768][  T579] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   37.778253][  T580] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-579: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./47/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./47/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./47/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./47/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./47/file0")         = 0
[pid   343] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./47/binderfs")     = 0
[pid   343] umount2("./47/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./47/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./47/cgroup.net")   = 0
[pid   343] umount2("./47/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./47/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./47/cgroup.cpu")   = 0
[pid   343] umount2("./47/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./47/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./47/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./47")               = 0
[pid   343] mkdir("./48", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 584 attached
, child_tidptr=0x55556f72b650) = 50
[pid   584] set_robust_list(0x55556f72b660, 24) = 0
[pid   584] chdir("./48")               = 0
[pid   584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   584] setpgid(0, 0)               = 0
[pid   584] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   584] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   584] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   584] write(3, "1000", 4)         = 4
[pid   584] close(3)                    = 0
[pid   584] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   584] symlink("/dev/binderfs", "./binderfs") = 0
[pid   584] write(1, "executing program\n", 18executing program
) = 18
[pid   584] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   584] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   584] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   584] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   584] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   584] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   584] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   584] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   584] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   584] memfd_create("syzkaller", 0) = 5
[pid   584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   584] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   584] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   584] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   584] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   584] close(5)                    = 0
[pid   584] close(6)                    = 0
[pid   584] mkdir("./file0", 0777)      = 0
[pid   584] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   584] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   584] chdir("./file0")            = 0
[pid   584] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   584] ioctl(6, LOOP_CLR_FD)       = 0
[pid   584] close(6)                    = 0
[pid   584] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   584] write(6, "#! ./file1\n", 11) = 11
[pid   584] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   584] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   584] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=50, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   37.967333][  T584] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   37.988168][  T585] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-584: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./48/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./48/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./48/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./48/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./48/file0")         = 0
[pid   343] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./48/binderfs")     = 0
[pid   343] umount2("./48/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./48/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./48/cgroup.net")   = 0
[pid   343] umount2("./48/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./48/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./48/cgroup.cpu")   = 0
[pid   343] umount2("./48/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./48/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./48/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./48")               = 0
[pid   343] mkdir("./49", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 589 attached
 <unfinished ...>
[pid   589] set_robust_list(0x55556f72b660, 24) = 0
[pid   589] chdir("./49" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 51
[pid   589] <... chdir resumed>)        = 0
[pid   589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   589] setpgid(0, 0)               = 0
[pid   589] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   589] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   589] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   589] write(3, "1000", 4)         = 4
[pid   589] close(3)                    = 0
[pid   589] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   589] symlink("/dev/binderfs", "./binderfs") = 0
[pid   589] write(1, "executing program\n", 18executing program
) = 18
[pid   589] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   589] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   589] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   589] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   589] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   589] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   589] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   589] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   589] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   589] memfd_create("syzkaller", 0) = 5
[pid   589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   589] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   589] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   589] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   589] close(5)                    = 0
[pid   589] close(6)                    = 0
[pid   589] mkdir("./file0", 0777)      = 0
[pid   589] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   589] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   589] chdir("./file0")            = 0
[pid   589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   589] ioctl(6, LOOP_CLR_FD)       = 0
[pid   589] close(6)                    = 0
[pid   589] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   589] write(6, "#! ./file1\n", 11) = 11
[pid   589] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   589] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   589] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=51, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   38.177786][  T589] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   38.198006][  T590] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-589: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./49/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./49/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./49/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./49/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./49/file0")         = 0
[pid   343] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./49/binderfs")     = 0
[pid   343] umount2("./49/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./49/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./49/cgroup.net")   = 0
[pid   343] umount2("./49/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./49/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./49/cgroup.cpu")   = 0
[pid   343] umount2("./49/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./49/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./49/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./49")               = 0
[pid   343] mkdir("./50", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 52
./strace-static-x86_64: Process 594 attached
[pid   594] set_robust_list(0x55556f72b660, 24) = 0
[pid   594] chdir("./50")               = 0
[pid   594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   594] setpgid(0, 0)               = 0
[pid   594] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   594] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   594] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   594] write(3, "1000", 4)         = 4
[pid   594] close(3)                    = 0
[pid   594] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   594] symlink("/dev/binderfs", "./binderfs") = 0
[pid   594] write(1, "executing program\n", 18executing program
) = 18
[pid   594] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   594] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   594] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   594] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   594] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   594] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   594] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   594] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   594] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   594] memfd_create("syzkaller", 0) = 5
[pid   594] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   594] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   594] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   594] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   594] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   594] close(5)                    = 0
[pid   594] close(6)                    = 0
[pid   594] mkdir("./file0", 0777)      = 0
[pid   594] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   594] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   594] chdir("./file0")            = 0
[pid   594] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   594] ioctl(6, LOOP_CLR_FD)       = 0
[pid   594] close(6)                    = 0
[pid   594] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   594] write(6, "#! ./file1\n", 11) = 11
[pid   594] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   594] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   594] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=52, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   38.297821][  T594] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   38.317527][  T595] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-594: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./50/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./50/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./50/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./50/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./50/file0")         = 0
[pid   343] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./50/binderfs")     = 0
[pid   343] umount2("./50/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./50/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./50/cgroup.net")   = 0
[pid   343] umount2("./50/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./50/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./50/cgroup.cpu")   = 0
[pid   343] umount2("./50/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./50/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./50/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./50")               = 0
[pid   343] mkdir("./51", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 599 attached
 <unfinished ...>
[pid   599] set_robust_list(0x55556f72b660, 24) = 0
[pid   599] chdir("./51")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 53
[pid   599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   599] setpgid(0, 0)               = 0
[pid   599] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   599] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   599] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   599] write(3, "1000", 4)         = 4
[pid   599] close(3)                    = 0
[pid   599] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   599] symlink("/dev/binderfs", "./binderfs") = 0
[pid   599] write(1, "executing program\n", 18executing program
) = 18
[pid   599] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   599] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   599] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   599] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   599] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   599] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   599] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   599] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   599] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   599] memfd_create("syzkaller", 0) = 5
[pid   599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   599] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   599] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   599] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   599] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   599] close(5)                    = 0
[pid   599] close(6)                    = 0
[pid   599] mkdir("./file0", 0777)      = 0
[pid   599] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   599] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   599] chdir("./file0")            = 0
[pid   599] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   599] ioctl(6, LOOP_CLR_FD)       = 0
[pid   599] close(6)                    = 0
[pid   599] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   599] write(6, "#! ./file1\n", 11) = 11
[pid   599] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[   38.512556][  T599] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[pid   599] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   599] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=53, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   38.552614][  T600] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-599: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./51/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./51/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./51/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./51/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./51/file0")         = 0
[pid   343] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./51/binderfs")     = 0
[pid   343] umount2("./51/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./51/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./51/cgroup.net")   = 0
[pid   343] umount2("./51/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./51/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./51/cgroup.cpu")   = 0
[pid   343] umount2("./51/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./51/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./51/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./51")               = 0
[pid   343] mkdir("./52", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 604 attached
 <unfinished ...>
[pid   604] set_robust_list(0x55556f72b660, 24) = 0
[pid   604] chdir("./52" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 54
[pid   604] <... chdir resumed>)        = 0
[pid   604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   604] setpgid(0, 0)               = 0
[pid   604] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   604] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   604] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   604] write(3, "1000", 4)         = 4
[pid   604] close(3)                    = 0
[pid   604] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   604] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   604] write(1, "executing program\n", 18) = 18
[pid   604] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   604] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   604] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   604] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   604] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   604] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   604] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   604] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   604] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   604] memfd_create("syzkaller", 0) = 5
[pid   604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   604] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   604] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   604] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   604] close(5)                    = 0
[pid   604] close(6)                    = 0
[pid   604] mkdir("./file0", 0777)      = 0
[pid   604] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   604] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   604] chdir("./file0")            = 0
[pid   604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   604] ioctl(6, LOOP_CLR_FD)       = 0
[pid   604] close(6)                    = 0
[pid   604] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   604] write(6, "#! ./file1\n", 11) = 11
[pid   604] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   604] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   604] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=54, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   38.747786][  T604] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   38.766110][  T604] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./52/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./52/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./52/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./52/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./52/file0")         = 0
[pid   343] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./52/binderfs")     = 0
[pid   343] umount2("./52/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./52/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./52/cgroup.net")   = 0
[pid   343] umount2("./52/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./52/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./52/cgroup.cpu")   = 0
[pid   343] umount2("./52/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./52/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./52/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./52")               = 0
[pid   343] mkdir("./53", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 609 attached
 <unfinished ...>
[pid   609] set_robust_list(0x55556f72b660, 24) = 0
[pid   609] chdir("./53")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 55
[pid   609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   609] setpgid(0, 0)               = 0
[pid   609] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   609] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   609] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   609] write(3, "1000", 4)         = 4
[pid   609] close(3)                    = 0
[pid   609] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   609] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   609] write(1, "executing program\n", 18) = 18
[pid   609] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   609] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   609] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   609] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   609] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   609] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   609] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   609] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   609] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   609] memfd_create("syzkaller", 0) = 5
[pid   609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   609] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   609] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   609] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   609] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   609] close(5)                    = 0
[pid   609] close(6)                    = 0
[pid   609] mkdir("./file0", 0777)      = 0
[pid   609] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   609] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   609] chdir("./file0")            = 0
[pid   609] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   609] ioctl(6, LOOP_CLR_FD)       = 0
[pid   609] close(6)                    = 0
[pid   609] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   609] write(6, "#! ./file1\n", 11) = 11
[pid   609] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   609] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   609] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=55, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   39.047887][  T609] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   39.079022][  T610] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-609: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./53/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./53/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./53/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./53/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./53/file0")         = 0
[pid   343] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./53/binderfs")     = 0
[pid   343] umount2("./53/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./53/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./53/cgroup.net")   = 0
[pid   343] umount2("./53/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./53/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./53/cgroup.cpu")   = 0
[pid   343] umount2("./53/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./53/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./53/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./53")               = 0
[pid   343] mkdir("./54", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 56
./strace-static-x86_64: Process 614 attached
[pid   614] set_robust_list(0x55556f72b660, 24) = 0
[pid   614] chdir("./54")               = 0
[pid   614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   614] setpgid(0, 0)               = 0
[pid   614] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   614] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   614] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   614] write(3, "1000", 4)         = 4
[pid   614] close(3)                    = 0
[pid   614] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   614] symlink("/dev/binderfs", "./binderfs") = 0
[pid   614] write(1, "executing program\n", 18executing program
) = 18
[pid   614] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   614] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   614] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   614] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   614] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   614] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   614] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   614] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   614] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   614] memfd_create("syzkaller", 0) = 5
[pid   614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   614] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   614] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   614] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   614] close(5)                    = 0
[pid   614] close(6)                    = 0
[pid   614] mkdir("./file0", 0777)      = 0
[pid   614] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   614] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   614] chdir("./file0")            = 0
[pid   614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   614] ioctl(6, LOOP_CLR_FD)       = 0
[pid   614] close(6)                    = 0
[pid   614] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   614] write(6, "#! ./file1\n", 11) = 11
[pid   614] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   614] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   614] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=56, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   39.347695][  T614] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   39.379109][  T615] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-614: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./54/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./54/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./54/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./54/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./54/file0")         = 0
[pid   343] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./54/binderfs")     = 0
[pid   343] umount2("./54/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./54/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./54/cgroup.net")   = 0
[pid   343] umount2("./54/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./54/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./54/cgroup.cpu")   = 0
[pid   343] umount2("./54/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./54/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./54/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./54")               = 0
[pid   343] mkdir("./55", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 619 attached
, child_tidptr=0x55556f72b650) = 57
[pid   619] set_robust_list(0x55556f72b660, 24) = 0
[pid   619] chdir("./55")               = 0
[pid   619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   619] setpgid(0, 0)               = 0
[pid   619] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   619] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   619] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   619] write(3, "1000", 4)         = 4
[pid   619] close(3)                    = 0
[pid   619] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   619] symlink("/dev/binderfs", "./binderfs") = 0
[pid   619] write(1, "executing program\n", 18executing program
) = 18
[pid   619] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   619] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   619] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   619] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   619] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   619] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   619] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   619] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   619] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   619] memfd_create("syzkaller", 0) = 5
[pid   619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   619] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   619] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   619] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   619] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   619] close(5)                    = 0
[pid   619] close(6)                    = 0
[pid   619] mkdir("./file0", 0777)      = 0
[pid   619] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   619] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   619] chdir("./file0")            = 0
[pid   619] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   619] ioctl(6, LOOP_CLR_FD)       = 0
[pid   619] close(6)                    = 0
[pid   619] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   619] write(6, "#! ./file1\n", 11) = 11
[pid   619] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   619] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   619] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=57, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   39.562080][  T619] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   39.581666][  T620] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-619: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./55/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./55/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./55/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./55/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./55/file0")         = 0
[pid   343] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./55/binderfs")     = 0
[pid   343] umount2("./55/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./55/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./55/cgroup.net")   = 0
[pid   343] umount2("./55/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./55/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./55/cgroup.cpu")   = 0
[pid   343] umount2("./55/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./55/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./55/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./55")               = 0
[pid   343] mkdir("./56", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 624 attached
, child_tidptr=0x55556f72b650) = 58
[pid   624] set_robust_list(0x55556f72b660, 24) = 0
[pid   624] chdir("./56")               = 0
[pid   624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   624] setpgid(0, 0)               = 0
[pid   624] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   624] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   624] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   624] write(3, "1000", 4)         = 4
[pid   624] close(3)                    = 0
[pid   624] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   624] symlink("/dev/binderfs", "./binderfs") = 0
[pid   624] write(1, "executing program\n", 18executing program
) = 18
[pid   624] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   624] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   624] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   624] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   624] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   624] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   624] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   624] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   624] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   624] memfd_create("syzkaller", 0) = 5
[pid   624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   624] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   624] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   624] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   624] close(5)                    = 0
[pid   624] close(6)                    = 0
[pid   624] mkdir("./file0", 0777)      = 0
[pid   624] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   624] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   624] chdir("./file0")            = 0
[pid   624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   624] ioctl(6, LOOP_CLR_FD)       = 0
[pid   624] close(6)                    = 0
[pid   624] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   624] write(6, "#! ./file1\n", 11) = 11
[pid   624] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   624] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   624] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=58, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=0} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   39.726026][  T624] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   39.746349][  T625] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-624: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./56/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./56/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./56/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./56/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./56/file0")         = 0
[pid   343] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./56/binderfs")     = 0
[pid   343] umount2("./56/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./56/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./56/cgroup.net")   = 0
[pid   343] umount2("./56/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./56/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./56/cgroup.cpu")   = 0
[pid   343] umount2("./56/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./56/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./56/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./56")               = 0
[pid   343] mkdir("./57", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 629 attached
 <unfinished ...>
[pid   629] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 59
[pid   629] <... set_robust_list resumed>) = 0
[pid   629] chdir("./57")               = 0
[pid   629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   629] setpgid(0, 0)               = 0
[pid   629] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   629] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   629] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   629] write(3, "1000", 4)         = 4
[pid   629] close(3)                    = 0
[pid   629] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   629] symlink("/dev/binderfs", "./binderfs") = 0
[pid   629] write(1, "executing program\n", 18executing program
) = 18
[pid   629] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   629] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   629] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   629] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   629] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   629] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   629] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   629] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   629] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   629] memfd_create("syzkaller", 0) = 5
[pid   629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   629] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   629] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   629] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   629] close(5)                    = 0
[pid   629] close(6)                    = 0
[pid   629] mkdir("./file0", 0777)      = 0
[pid   629] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   629] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   629] chdir("./file0")            = 0
[pid   629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   629] ioctl(6, LOOP_CLR_FD)       = 0
[pid   629] close(6)                    = 0
[pid   629] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   629] write(6, "#! ./file1\n", 11) = 11
[pid   629] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   629] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   629] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=59, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   39.880430][  T629] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   39.900350][  T630] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-629: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./57/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./57/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./57/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./57/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./57/file0")         = 0
[pid   343] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./57/binderfs")     = 0
[pid   343] umount2("./57/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./57/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./57/cgroup.net")   = 0
[pid   343] umount2("./57/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./57/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./57/cgroup.cpu")   = 0
[pid   343] umount2("./57/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./57/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./57/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./57")               = 0
[pid   343] mkdir("./58", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 634 attached
, child_tidptr=0x55556f72b650) = 60
[pid   634] set_robust_list(0x55556f72b660, 24) = 0
[pid   634] chdir("./58")               = 0
[pid   634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   634] setpgid(0, 0)               = 0
[pid   634] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   634] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   634] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   634] write(3, "1000", 4)         = 4
[pid   634] close(3)                    = 0
[pid   634] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   634] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   634] write(1, "executing program\n", 18) = 18
[pid   634] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   634] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   634] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   634] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   634] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   634] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   634] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   634] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   634] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   634] memfd_create("syzkaller", 0) = 5
[pid   634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   634] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   634] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   634] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   634] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   634] close(5)                    = 0
[pid   634] close(6)                    = 0
[pid   634] mkdir("./file0", 0777)      = 0
[pid   634] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   634] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   634] chdir("./file0")            = 0
[pid   634] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   634] ioctl(6, LOOP_CLR_FD)       = 0
[pid   634] close(6)                    = 0
[pid   634] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   634] write(6, "#! ./file1\n", 11) = 11
[pid   634] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   634] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   634] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=60, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   40.037713][  T634] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   40.057409][  T635] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-634: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./58/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./58/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./58/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./58/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./58/file0")         = 0
[pid   343] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./58/binderfs")     = 0
[pid   343] umount2("./58/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./58/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./58/cgroup.net")   = 0
[pid   343] umount2("./58/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./58/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./58/cgroup.cpu")   = 0
[pid   343] umount2("./58/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./58/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./58/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./58")               = 0
[pid   343] mkdir("./59", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 639 attached
 <unfinished ...>
[pid   639] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 61
[pid   639] <... set_robust_list resumed>) = 0
[pid   639] chdir("./59")               = 0
[pid   639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   639] setpgid(0, 0)               = 0
[pid   639] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   639] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   639] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   639] write(3, "1000", 4)         = 4
[pid   639] close(3)                    = 0
[pid   639] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   639] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   639] write(1, "executing program\n", 18) = 18
[pid   639] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   639] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   639] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   639] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   639] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   639] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   639] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   639] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   639] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   639] memfd_create("syzkaller", 0) = 5
[pid   639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   639] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   639] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   639] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   639] close(5)                    = 0
[pid   639] close(6)                    = 0
[pid   639] mkdir("./file0", 0777)      = 0
[pid   639] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   639] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   639] chdir("./file0")            = 0
[pid   639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   639] ioctl(6, LOOP_CLR_FD)       = 0
[pid   639] close(6)                    = 0
[pid   639] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   639] write(6, "#! ./file1\n", 11) = 11
[pid   639] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   639] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   639] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=61, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   40.191103][  T639] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   40.208291][  T639] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./59/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./59/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./59/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./59/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./59/file0")         = 0
[pid   343] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./59/binderfs")     = 0
[pid   343] umount2("./59/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./59/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./59/cgroup.net")   = 0
[pid   343] umount2("./59/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./59/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./59/cgroup.cpu")   = 0
[pid   343] umount2("./59/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./59/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./59/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./59")               = 0
[pid   343] mkdir("./60", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 644 attached
, child_tidptr=0x55556f72b650) = 62
[pid   644] set_robust_list(0x55556f72b660, 24) = 0
[pid   644] chdir("./60")               = 0
[pid   644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   644] setpgid(0, 0)               = 0
[pid   644] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   644] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   644] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   644] write(3, "1000", 4)         = 4
[pid   644] close(3)                    = 0
[pid   644] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   644] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   644] write(1, "executing program\n", 18) = 18
[pid   644] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   644] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   644] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   644] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   644] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   644] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   644] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   644] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   644] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   644] memfd_create("syzkaller", 0) = 5
[pid   644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   644] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   644] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   644] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   644] close(5)                    = 0
[pid   644] close(6)                    = 0
[pid   644] mkdir("./file0", 0777)      = 0
[pid   644] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   644] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   644] chdir("./file0")            = 0
[pid   644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   644] ioctl(6, LOOP_CLR_FD)       = 0
[pid   644] close(6)                    = 0
[pid   644] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   644] write(6, "#! ./file1\n", 11) = 11
[pid   644] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   644] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   644] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=62, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   40.407709][  T644] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   40.439348][  T645] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-644: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./60/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./60/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./60/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./60/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./60/file0")         = 0
[pid   343] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./60/binderfs")     = 0
[pid   343] umount2("./60/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./60/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./60/cgroup.net")   = 0
[pid   343] umount2("./60/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./60/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./60/cgroup.cpu")   = 0
[pid   343] umount2("./60/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./60/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./60/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./60")               = 0
[pid   343] mkdir("./61", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 649 attached
 <unfinished ...>
[pid   649] set_robust_list(0x55556f72b660, 24) = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 63
[pid   649] chdir("./61")               = 0
[pid   649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   649] setpgid(0, 0)               = 0
[pid   649] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   649] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   649] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   649] write(3, "1000", 4)         = 4
[pid   649] close(3)                    = 0
[pid   649] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   649] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   649] write(1, "executing program\n", 18) = 18
[pid   649] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   649] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   649] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   649] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   649] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   649] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   649] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   649] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   649] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   649] memfd_create("syzkaller", 0) = 5
[pid   649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   649] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   649] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   649] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   649] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   649] close(5)                    = 0
[pid   649] close(6)                    = 0
[pid   649] mkdir("./file0", 0777)      = 0
[pid   649] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   649] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   649] chdir("./file0")            = 0
[pid   649] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   649] ioctl(6, LOOP_CLR_FD)       = 0
[pid   649] close(6)                    = 0
[pid   649] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   649] write(6, "#! ./file1\n", 11) = 11
[pid   649] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   649] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   649] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=63, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   40.657845][  T649] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   40.691665][  T650] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-649: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./61/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./61/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./61/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./61/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./61/file0")         = 0
[pid   343] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./61/binderfs")     = 0
[pid   343] umount2("./61/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./61/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./61/cgroup.net")   = 0
[pid   343] umount2("./61/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./61/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./61/cgroup.cpu")   = 0
[pid   343] umount2("./61/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./61/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./61/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./61")               = 0
[pid   343] mkdir("./62", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 654 attached
, child_tidptr=0x55556f72b650) = 64
[pid   654] set_robust_list(0x55556f72b660, 24) = 0
[pid   654] chdir("./62")               = 0
[pid   654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   654] setpgid(0, 0)               = 0
[pid   654] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   654] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   654] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   654] write(3, "1000", 4)         = 4
[pid   654] close(3)                    = 0
[pid   654] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   654] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   654] write(1, "executing program\n", 18) = 18
[pid   654] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   654] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   654] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   654] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   654] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   654] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   654] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   654] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   654] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   654] memfd_create("syzkaller", 0) = 5
[pid   654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   654] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   654] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   654] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   654] close(5)                    = 0
[pid   654] close(6)                    = 0
[pid   654] mkdir("./file0", 0777)      = 0
[pid   654] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   654] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   654] chdir("./file0")            = 0
[pid   654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   654] ioctl(6, LOOP_CLR_FD)       = 0
[pid   654] close(6)                    = 0
[pid   654] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   654] write(6, "#! ./file1\n", 11) = 11
[pid   654] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   654] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   654] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=64, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   40.907201][  T654] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   40.928020][  T655] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-654: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./62/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./62/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./62/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./62/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./62/file0")         = 0
[pid   343] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./62/binderfs")     = 0
[pid   343] umount2("./62/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./62/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./62/cgroup.net")   = 0
[pid   343] umount2("./62/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./62/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./62/cgroup.cpu")   = 0
[pid   343] umount2("./62/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./62/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./62/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./62")               = 0
[pid   343] mkdir("./63", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 65
./strace-static-x86_64: Process 659 attached
[pid   659] set_robust_list(0x55556f72b660, 24) = 0
[pid   659] chdir("./63")               = 0
[pid   659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   659] setpgid(0, 0)               = 0
[pid   659] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   659] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   659] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   659] write(3, "1000", 4)         = 4
[pid   659] close(3)                    = 0
[pid   659] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   659] symlink("/dev/binderfs", "./binderfs") = 0
[pid   659] write(1, "executing program\n", 18executing program
) = 18
[pid   659] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   659] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   659] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   659] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   659] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   659] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   659] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   659] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   659] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   659] memfd_create("syzkaller", 0) = 5
[pid   659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   659] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   659] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   659] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   659] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   659] close(5)                    = 0
[pid   659] close(6)                    = 0
[pid   659] mkdir("./file0", 0777)      = 0
[pid   659] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   659] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   659] chdir("./file0")            = 0
[pid   659] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   659] ioctl(6, LOOP_CLR_FD)       = 0
[pid   659] close(6)                    = 0
[pid   659] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   659] write(6, "#! ./file1\n", 11) = 11
[pid   659] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   659] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   659] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=65, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   41.067799][  T659] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   41.088251][  T660] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-659: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./63/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./63/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./63/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./63/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./63/file0")         = 0
[pid   343] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./63/binderfs")     = 0
[pid   343] umount2("./63/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./63/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./63/cgroup.net")   = 0
[pid   343] umount2("./63/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./63/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./63/cgroup.cpu")   = 0
[pid   343] umount2("./63/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./63/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./63/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./63")               = 0
[pid   343] mkdir("./64", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 664 attached
 <unfinished ...>
[pid   664] set_robust_list(0x55556f72b660, 24) = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 66
[pid   664] chdir("./64")               = 0
[pid   664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   664] setpgid(0, 0)               = 0
[pid   664] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   664] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   664] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   664] write(3, "1000", 4)         = 4
[pid   664] close(3)                    = 0
[pid   664] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   664] symlink("/dev/binderfs", "./binderfs") = 0
[pid   664] write(1, "executing program\n", 18executing program
) = 18
[pid   664] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   664] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   664] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   664] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   664] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   664] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   664] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   664] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   664] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   664] memfd_create("syzkaller", 0) = 5
[pid   664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   664] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   664] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   664] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   664] close(5)                    = 0
[pid   664] close(6)                    = 0
[pid   664] mkdir("./file0", 0777)      = 0
[pid   664] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   664] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   664] chdir("./file0")            = 0
[pid   664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   664] ioctl(6, LOOP_CLR_FD)       = 0
[pid   664] close(6)                    = 0
[pid   664] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   664] write(6, "#! ./file1\n", 11) = 11
[pid   664] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   664] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   664] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=66, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   41.257680][  T664] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   41.289451][  T665] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-664: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./64/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./64/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./64/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./64/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./64/file0")         = 0
[pid   343] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./64/binderfs")     = 0
[pid   343] umount2("./64/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./64/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./64/cgroup.net")   = 0
[pid   343] umount2("./64/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./64/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./64/cgroup.cpu")   = 0
[pid   343] umount2("./64/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./64/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./64/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./64")               = 0
[pid   343] mkdir("./65", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 669 attached
 <unfinished ...>
[pid   669] set_robust_list(0x55556f72b660, 24) = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 67
[pid   669] chdir("./65")               = 0
[pid   669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   669] setpgid(0, 0)               = 0
[pid   669] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   669] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   669] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   669] write(3, "1000", 4)         = 4
[pid   669] close(3)                    = 0
[pid   669] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   669] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   669] write(1, "executing program\n", 18) = 18
[pid   669] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   669] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   669] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   669] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   669] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   669] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   669] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   669] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   669] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   669] memfd_create("syzkaller", 0) = 5
[pid   669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   669] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   669] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   669] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   669] close(5)                    = 0
[pid   669] close(6)                    = 0
[pid   669] mkdir("./file0", 0777)      = 0
[pid   669] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   669] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   669] chdir("./file0")            = 0
[pid   669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   669] ioctl(6, LOOP_CLR_FD)       = 0
[pid   669] close(6)                    = 0
[pid   669] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   669] write(6, "#! ./file1\n", 11) = 11
[pid   669] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   669] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   669] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=67, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   41.557727][  T669] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   41.589098][  T670] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-669: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./65/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./65/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./65/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./65/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./65/file0")         = 0
[pid   343] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./65/binderfs")     = 0
[pid   343] umount2("./65/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./65/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./65/cgroup.net")   = 0
[pid   343] umount2("./65/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./65/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./65/cgroup.cpu")   = 0
[pid   343] umount2("./65/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./65/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./65/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./65")               = 0
[pid   343] mkdir("./66", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 68
./strace-static-x86_64: Process 674 attached
[pid   674] set_robust_list(0x55556f72b660, 24) = 0
[pid   674] chdir("./66")               = 0
[pid   674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   674] setpgid(0, 0)               = 0
executing program
[pid   674] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   674] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   674] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   674] write(3, "1000", 4)         = 4
[pid   674] close(3)                    = 0
[pid   674] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   674] symlink("/dev/binderfs", "./binderfs") = 0
[pid   674] write(1, "executing program\n", 18) = 18
[pid   674] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   674] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   674] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   674] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   674] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   674] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   674] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   674] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   674] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   674] memfd_create("syzkaller", 0) = 5
[pid   674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   674] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   674] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   674] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   674] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   674] close(5)                    = 0
[pid   674] close(6)                    = 0
[pid   674] mkdir("./file0", 0777)      = 0
[pid   674] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   674] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   674] chdir("./file0")            = 0
[pid   674] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   674] ioctl(6, LOOP_CLR_FD)       = 0
[pid   674] close(6)                    = 0
[pid   674] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   674] write(6, "#! ./file1\n", 11) = 11
[pid   674] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   674] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   674] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=68, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   41.847722][  T674] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   41.862542][  T675] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-674: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./66/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./66/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./66/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./66/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./66/file0")         = 0
[pid   343] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./66/binderfs")     = 0
[pid   343] umount2("./66/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./66/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./66/cgroup.net")   = 0
[pid   343] umount2("./66/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./66/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./66/cgroup.cpu")   = 0
[pid   343] umount2("./66/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./66/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./66/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./66")               = 0
[pid   343] mkdir("./67", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 679 attached
 <unfinished ...>
[pid   679] set_robust_list(0x55556f72b660, 24) = 0
[pid   679] chdir("./67" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 69
[pid   679] <... chdir resumed>)        = 0
[pid   679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   679] setpgid(0, 0)               = 0
[pid   679] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   679] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   679] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   679] write(3, "1000", 4)         = 4
[pid   679] close(3)                    = 0
[pid   679] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   679] symlink("/dev/binderfs", "./binderfs") = 0
[pid   679] write(1, "executing program\n", 18executing program
) = 18
[pid   679] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   679] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   679] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   679] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   679] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   679] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   679] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   679] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   679] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   679] memfd_create("syzkaller", 0) = 5
[pid   679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   679] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   679] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   679] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   679] close(5)                    = 0
[pid   679] close(6)                    = 0
[pid   679] mkdir("./file0", 0777)      = 0
[pid   679] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   679] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   679] chdir("./file0")            = 0
[pid   679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   679] ioctl(6, LOOP_CLR_FD)       = 0
[pid   679] close(6)                    = 0
[pid   679] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   679] write(6, "#! ./file1\n", 11) = 11
[pid   679] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   679] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   679] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=69, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   42.038585][  T679] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   42.060561][  T680] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-679: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./67/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./67/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./67/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./67/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./67/file0")         = 0
[pid   343] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./67/binderfs")     = 0
[pid   343] umount2("./67/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./67/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./67/cgroup.net")   = 0
[pid   343] umount2("./67/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./67/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./67/cgroup.cpu")   = 0
[pid   343] umount2("./67/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./67/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./67/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./67")               = 0
[pid   343] mkdir("./68", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 70
./strace-static-x86_64: Process 684 attached
[pid   684] set_robust_list(0x55556f72b660, 24) = 0
[pid   684] chdir("./68")               = 0
[pid   684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   684] setpgid(0, 0)               = 0
[pid   684] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   684] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   684] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   684] write(3, "1000", 4)         = 4
[pid   684] close(3)                    = 0
[pid   684] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   684] symlink("/dev/binderfs", "./binderfs") = 0
[pid   684] write(1, "executing program\n", 18executing program
) = 18
[pid   684] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   684] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   684] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   684] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   684] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   684] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   684] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   684] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   684] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   684] memfd_create("syzkaller", 0) = 5
[pid   684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   684] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   684] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   684] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   684] close(5)                    = 0
[pid   684] close(6)                    = 0
[pid   684] mkdir("./file0", 0777)      = 0
[pid   684] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   684] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   684] chdir("./file0")            = 0
[pid   684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   684] ioctl(6, LOOP_CLR_FD)       = 0
[pid   684] close(6)                    = 0
[pid   684] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   684] write(6, "#! ./file1\n", 11) = 11
[pid   684] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   684] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   684] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=70, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   42.200003][  T684] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   42.220688][  T685] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-684: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./68/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./68/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./68/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./68/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./68/file0")         = 0
[pid   343] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./68/binderfs")     = 0
[pid   343] umount2("./68/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./68/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./68/cgroup.net")   = 0
[pid   343] umount2("./68/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./68/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./68/cgroup.cpu")   = 0
[pid   343] umount2("./68/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./68/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./68/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./68")               = 0
[pid   343] mkdir("./69", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 71
./strace-static-x86_64: Process 689 attached
[pid   689] set_robust_list(0x55556f72b660, 24) = 0
[pid   689] chdir("./69")               = 0
[pid   689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   689] setpgid(0, 0)               = 0
[pid   689] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   689] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   689] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   689] write(3, "1000", 4)         = 4
[pid   689] close(3)                    = 0
[pid   689] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   689] symlink("/dev/binderfs", "./binderfs") = 0
[pid   689] write(1, "executing program\n", 18executing program
) = 18
[pid   689] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   689] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   689] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   689] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   689] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   689] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   689] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   689] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   689] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   689] memfd_create("syzkaller", 0) = 5
[pid   689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   689] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   689] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   689] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   689] close(5)                    = 0
[pid   689] close(6)                    = 0
[pid   689] mkdir("./file0", 0777)      = 0
[pid   689] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   689] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   689] chdir("./file0")            = 0
[pid   689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   689] ioctl(6, LOOP_CLR_FD)       = 0
[pid   689] close(6)                    = 0
[pid   689] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   689] write(6, "#! ./file1\n", 11) = 11
[pid   689] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   689] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   689] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=71, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   42.397772][  T689] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   42.417129][  T690] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-689: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./69/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./69/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./69/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./69/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./69/file0")         = 0
[pid   343] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./69/binderfs")     = 0
[pid   343] umount2("./69/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./69/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./69/cgroup.net")   = 0
[pid   343] umount2("./69/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./69/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./69/cgroup.cpu")   = 0
[pid   343] umount2("./69/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./69/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./69/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./69")               = 0
[pid   343] mkdir("./70", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 694 attached
, child_tidptr=0x55556f72b650) = 72
[pid   694] set_robust_list(0x55556f72b660, 24) = 0
[pid   694] chdir("./70")               = 0
[pid   694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   694] setpgid(0, 0)               = 0
[pid   694] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   694] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   694] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   694] write(3, "1000", 4)         = 4
[pid   694] close(3)                    = 0
[pid   694] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   694] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   694] write(1, "executing program\n", 18) = 18
[pid   694] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   694] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   694] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   694] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   694] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   694] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   694] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   694] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   694] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   694] memfd_create("syzkaller", 0) = 5
[pid   694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   694] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   694] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   694] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   694] close(5)                    = 0
[pid   694] close(6)                    = 0
[pid   694] mkdir("./file0", 0777)      = 0
[pid   694] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   694] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   694] chdir("./file0")            = 0
[pid   694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   694] ioctl(6, LOOP_CLR_FD)       = 0
[pid   694] close(6)                    = 0
[pid   694] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   694] write(6, "#! ./file1\n", 11) = 11
[pid   694] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   694] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   694] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=72, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   42.597771][  T694] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   42.617305][  T695] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-694: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./70/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./70/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./70/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./70/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./70/file0")         = 0
[pid   343] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./70/binderfs")     = 0
[pid   343] umount2("./70/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./70/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./70/cgroup.net")   = 0
[pid   343] umount2("./70/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./70/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./70/cgroup.cpu")   = 0
[pid   343] umount2("./70/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./70/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./70/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./70")               = 0
[pid   343] mkdir("./71", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 699 attached
, child_tidptr=0x55556f72b650) = 73
[pid   699] set_robust_list(0x55556f72b660, 24) = 0
[pid   699] chdir("./71")               = 0
[pid   699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   699] setpgid(0, 0)               = 0
[pid   699] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   699] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   699] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   699] write(3, "1000", 4)         = 4
[pid   699] close(3)                    = 0
[pid   699] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   699] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   699] write(1, "executing program\n", 18) = 18
[pid   699] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   699] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   699] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   699] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   699] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   699] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   699] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   699] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   699] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   699] memfd_create("syzkaller", 0) = 5
[pid   699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   699] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   699] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   699] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   699] close(5)                    = 0
[pid   699] close(6)                    = 0
[pid   699] mkdir("./file0", 0777)      = 0
[pid   699] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   699] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   699] chdir("./file0")            = 0
[pid   699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   699] ioctl(6, LOOP_CLR_FD)       = 0
[pid   699] close(6)                    = 0
[pid   699] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   699] write(6, "#! ./file1\n", 11) = 11
[pid   699] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   699] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   699] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=73, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[pid   343] umount2("./71/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./71/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./71/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./71/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./71/file0")         = 0
[pid   343] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./71/binderfs")     = 0
[pid   343] umount2("./71/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./71/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./71/cgroup.net")   = 0
[pid   343] umount2("./71/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./71/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./71/cgroup.cpu")   = 0
[pid   343] umount2("./71/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./71/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./71/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./71")               = 0
[   42.761430][  T699] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   42.778046][  T699] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] mkdir("./72", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 704 attached
, child_tidptr=0x55556f72b650) = 74
[pid   704] set_robust_list(0x55556f72b660, 24) = 0
[pid   704] chdir("./72")               = 0
[pid   704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   704] setpgid(0, 0)               = 0
[pid   704] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   704] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   704] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   704] write(3, "1000", 4)         = 4
[pid   704] close(3)                    = 0
[pid   704] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   704] symlink("/dev/binderfs", "./binderfs") = 0
[pid   704] write(1, "executing program\n", 18executing program
) = 18
[pid   704] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   704] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   704] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   704] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   704] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   704] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   704] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   704] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   704] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   704] memfd_create("syzkaller", 0) = 5
[pid   704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   704] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   704] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   704] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   704] close(5)                    = 0
[pid   704] close(6)                    = 0
[pid   704] mkdir("./file0", 0777)      = 0
[pid   704] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   704] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   704] chdir("./file0")            = 0
[pid   704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   704] ioctl(6, LOOP_CLR_FD)       = 0
[pid   704] close(6)                    = 0
[pid   704] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   704] write(6, "#! ./file1\n", 11) = 11
[pid   704] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   704] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   704] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=74, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   42.880977][  T704] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   42.901923][  T705] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-704: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./72/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./72/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./72/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./72/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./72/file0")         = 0
[pid   343] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./72/binderfs")     = 0
[pid   343] umount2("./72/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./72/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./72/cgroup.net")   = 0
[pid   343] umount2("./72/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./72/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./72/cgroup.cpu")   = 0
[pid   343] umount2("./72/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./72/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./72/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./72")               = 0
[pid   343] mkdir("./73", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 75
./strace-static-x86_64: Process 709 attached
[pid   709] set_robust_list(0x55556f72b660, 24) = 0
[pid   709] chdir("./73")               = 0
[pid   709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   709] setpgid(0, 0)               = 0
[pid   709] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   709] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   709] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   709] write(3, "1000", 4)         = 4
[pid   709] close(3)                    = 0
[pid   709] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   709] symlink("/dev/binderfs", "./binderfs") = 0
[pid   709] write(1, "executing program\n", 18executing program
) = 18
[pid   709] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   709] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   709] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   709] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   709] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   709] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   709] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   709] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   709] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   709] memfd_create("syzkaller", 0) = 5
[pid   709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   709] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   709] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   709] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   709] close(5)                    = 0
[pid   709] close(6)                    = 0
[pid   709] mkdir("./file0", 0777)      = 0
[pid   709] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   709] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   709] chdir("./file0")            = 0
[pid   709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   709] ioctl(6, LOOP_CLR_FD)       = 0
[pid   709] close(6)                    = 0
[pid   709] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   709] write(6, "#! ./file1\n", 11) = 11
[pid   709] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   709] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   709] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=75, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   43.080582][  T709] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   43.100089][  T710] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-709: bg 0: block 234: padding at end of block bitmap is not set
[   43.116973][  T709] syz-executor243 (709) used greatest stack depth: 21760 bytes left
[pid   343] umount2("./73/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./73/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./73/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./73/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./73/file0")         = 0
[pid   343] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./73/binderfs")     = 0
[pid   343] umount2("./73/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./73/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./73/cgroup.net")   = 0
[pid   343] umount2("./73/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./73/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./73/cgroup.cpu")   = 0
[pid   343] umount2("./73/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./73/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./73/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./73")               = 0
[pid   343] mkdir("./74", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 76
./strace-static-x86_64: Process 714 attached
[pid   714] set_robust_list(0x55556f72b660, 24) = 0
[pid   714] chdir("./74")               = 0
[pid   714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   714] setpgid(0, 0)               = 0
[pid   714] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   714] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   714] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   714] write(3, "1000", 4)         = 4
[pid   714] close(3)                    = 0
[pid   714] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   714] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   714] write(1, "executing program\n", 18) = 18
[pid   714] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   714] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   714] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   714] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   714] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   714] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   714] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   714] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   714] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   714] memfd_create("syzkaller", 0) = 5
[pid   714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   714] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   714] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   714] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   714] close(5)                    = 0
[pid   714] close(6)                    = 0
[pid   714] mkdir("./file0", 0777)      = 0
[pid   714] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   714] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   714] chdir("./file0")            = 0
[pid   714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   714] ioctl(6, LOOP_CLR_FD)       = 0
[pid   714] close(6)                    = 0
[pid   714] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   714] write(6, "#! ./file1\n", 11) = 11
[pid   714] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   714] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   714] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=76, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   43.327716][  T714] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   43.359048][  T715] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-714: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./74/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./74/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./74/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./74/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./74/file0")         = 0
[pid   343] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./74/binderfs")     = 0
[pid   343] umount2("./74/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./74/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./74/cgroup.net")   = 0
[pid   343] umount2("./74/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./74/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./74/cgroup.cpu")   = 0
[pid   343] umount2("./74/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./74/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./74/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./74")               = 0
[pid   343] mkdir("./75", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 77
./strace-static-x86_64: Process 719 attached
[pid   719] set_robust_list(0x55556f72b660, 24) = 0
[pid   719] chdir("./75")               = 0
[pid   719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   719] setpgid(0, 0)               = 0
[pid   719] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   719] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   719] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   719] write(3, "1000", 4)         = 4
[pid   719] close(3)                    = 0
[pid   719] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   719] symlink("/dev/binderfs", "./binderfs") = 0
[pid   719] write(1, "executing program\n", 18) = 18
[pid   719] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   719] ioctl(3, VHOST_SET_OWNERexecuting program
, 0) = 0
[pid   719] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   719] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   719] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   719] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   719] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   719] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   719] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   719] memfd_create("syzkaller", 0) = 5
[pid   719] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   719] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   719] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   719] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   719] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   719] close(5)                    = 0
[pid   719] close(6)                    = 0
[pid   719] mkdir("./file0", 0777)      = 0
[pid   719] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   719] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   719] chdir("./file0")            = 0
[pid   719] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   719] ioctl(6, LOOP_CLR_FD)       = 0
[pid   719] close(6)                    = 0
[pid   719] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   719] write(6, "#! ./file1\n", 11) = 11
[pid   719] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   719] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   719] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=77, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   43.478323][  T719] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   43.509673][  T720] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-719: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./75/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./75/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./75/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./75/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./75/file0")         = 0
[pid   343] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./75/binderfs")     = 0
[pid   343] umount2("./75/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./75/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./75/cgroup.net")   = 0
[pid   343] umount2("./75/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./75/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./75/cgroup.cpu")   = 0
[pid   343] umount2("./75/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./75/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./75/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./75")               = 0
[pid   343] mkdir("./76", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 724 attached
 <unfinished ...>
[pid   724] set_robust_list(0x55556f72b660, 24) = 0
[pid   724] chdir("./76" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 78
[pid   724] <... chdir resumed>)        = 0
[pid   724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   724] setpgid(0, 0)               = 0
[pid   724] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   724] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   724] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   724] write(3, "1000", 4)         = 4
[pid   724] close(3)                    = 0
[pid   724] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   724] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   724] write(1, "executing program\n", 18) = 18
[pid   724] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   724] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   724] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   724] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   724] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   724] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   724] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   724] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   724] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   724] memfd_create("syzkaller", 0) = 5
[pid   724] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   724] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   724] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   724] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   724] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   724] close(5)                    = 0
[pid   724] close(6)                    = 0
[pid   724] mkdir("./file0", 0777)      = 0
[pid   724] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   724] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   724] chdir("./file0")            = 0
[pid   724] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   724] ioctl(6, LOOP_CLR_FD)       = 0
[pid   724] close(6)                    = 0
[pid   724] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   724] write(6, "#! ./file1\n", 11) = 11
[pid   724] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   724] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   724] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=78, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   43.697701][  T724] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   43.727943][  T724] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./76/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./76/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./76/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./76/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./76/file0")         = 0
[pid   343] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./76/binderfs")     = 0
[pid   343] umount2("./76/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./76/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./76/cgroup.net")   = 0
[pid   343] umount2("./76/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./76/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./76/cgroup.cpu")   = 0
[pid   343] umount2("./76/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./76/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./76/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./76")               = 0
[pid   343] mkdir("./77", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 730 attached
 <unfinished ...>
[pid   730] set_robust_list(0x55556f72b660, 24) = 0
[pid   730] chdir("./77")               = 0
[pid   730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   730] setpgid(0, 0)               = 0
[pid   730] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   730] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   730] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   730] write(3, "1000", 4)         = 4
[pid   730] close(3)                    = 0
[pid   730] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   730] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   730] write(1, "executing program\n", 18) = 18
[pid   730] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   730] ioctl(3, VHOST_SET_OWNER <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 79
[pid   730] <... ioctl resumed>, 0)     = 0
[pid   730] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   730] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   730] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   730] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   730] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   730] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   730] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   730] memfd_create("syzkaller", 0) = 5
[pid   730] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   730] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   730] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   730] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   730] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   730] close(5)                    = 0
[pid   730] close(6)                    = 0
[pid   730] mkdir("./file0", 0777)      = 0
[pid   730] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   730] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   730] chdir("./file0")            = 0
[pid   730] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   730] ioctl(6, LOOP_CLR_FD)       = 0
[pid   730] close(6)                    = 0
[pid   730] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   730] write(6, "#! ./file1\n", 11) = 11
[pid   730] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   730] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   730] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=79, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   43.917698][  T730] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   43.937065][  T731] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-730: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./77/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./77/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./77/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./77/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./77/file0")         = 0
[pid   343] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./77/binderfs")     = 0
[pid   343] umount2("./77/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./77/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./77/cgroup.net")   = 0
[pid   343] umount2("./77/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./77/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./77/cgroup.cpu")   = 0
[pid   343] umount2("./77/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./77/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./77/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./77")               = 0
[pid   343] mkdir("./78", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 735 attached
, child_tidptr=0x55556f72b650) = 80
[pid   735] set_robust_list(0x55556f72b660, 24) = 0
[pid   735] chdir("./78")               = 0
[pid   735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   735] setpgid(0, 0)               = 0
[pid   735] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   735] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   735] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   735] write(3, "1000", 4)         = 4
[pid   735] close(3)                    = 0
[pid   735] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   735] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   735] write(1, "executing program\n", 18) = 18
[pid   735] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   735] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   735] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   735] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   735] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   735] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   735] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   735] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   735] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   735] memfd_create("syzkaller", 0) = 5
[pid   735] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   735] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   735] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   735] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   735] close(5)                    = 0
[pid   735] close(6)                    = 0
[pid   735] mkdir("./file0", 0777)      = 0
[pid   735] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   735] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   735] chdir("./file0")            = 0
[pid   735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   735] ioctl(6, LOOP_CLR_FD)       = 0
[pid   735] close(6)                    = 0
[pid   735] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   735] write(6, "#! ./file1\n", 11) = 11
[pid   735] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   735] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   735] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=80, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   44.121658][  T735] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   44.138438][  T735] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./78/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./78/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./78/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./78/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./78/file0")         = 0
[pid   343] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./78/binderfs")     = 0
[pid   343] umount2("./78/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./78/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./78/cgroup.net")   = 0
[pid   343] umount2("./78/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./78/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./78/cgroup.cpu")   = 0
[pid   343] umount2("./78/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./78/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./78/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./78")               = 0
[pid   343] mkdir("./79", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 740 attached
 <unfinished ...>
[pid   740] set_robust_list(0x55556f72b660, 24) = 0
[pid   740] chdir("./79" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 81
[pid   740] <... chdir resumed>)        = 0
[pid   740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   740] setpgid(0, 0)               = 0
[pid   740] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   740] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   740] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   740] write(3, "1000", 4)         = 4
[pid   740] close(3)                    = 0
[pid   740] read(200, executing program
0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   740] symlink("/dev/binderfs", "./binderfs") = 0
[pid   740] write(1, "executing program\n", 18) = 18
[pid   740] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   740] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   740] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   740] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   740] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   740] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   740] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   740] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   740] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   740] memfd_create("syzkaller", 0) = 5
[pid   740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   740] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   740] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   740] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   740] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   740] close(5)                    = 0
[pid   740] close(6)                    = 0
[pid   740] mkdir("./file0", 0777)      = 0
[pid   740] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   740] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   740] chdir("./file0")            = 0
[pid   740] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   740] ioctl(6, LOOP_CLR_FD)       = 0
[pid   740] close(6)                    = 0
[pid   740] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   740] write(6, "#! ./file1\n", 11) = 11
[pid   740] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   740] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   740] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=81, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=0} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   44.267735][  T740] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   44.287633][  T741] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-740: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./79/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./79/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./79/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./79/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./79/file0")         = 0
[pid   343] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./79/binderfs")     = 0
[pid   343] umount2("./79/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./79/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./79/cgroup.net")   = 0
[pid   343] umount2("./79/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./79/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./79/cgroup.cpu")   = 0
[pid   343] umount2("./79/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./79/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./79/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./79")               = 0
[pid   343] mkdir("./80", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 82
./strace-static-x86_64: Process 745 attached
[pid   745] set_robust_list(0x55556f72b660, 24) = 0
[pid   745] chdir("./80")               = 0
[pid   745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   745] setpgid(0, 0)               = 0
[pid   745] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   745] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   745] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   745] write(3, "1000", 4)         = 4
[pid   745] close(3)                    = 0
[pid   745] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   745] symlink("/dev/binderfs", "./binderfs") = 0
[pid   745] write(1, "executing program\n", 18executing program
) = 18
[pid   745] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   745] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   745] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   745] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   745] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   745] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   745] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   745] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   745] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   745] memfd_create("syzkaller", 0) = 5
[pid   745] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   745] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   745] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   745] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   745] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   745] close(5)                    = 0
[pid   745] close(6)                    = 0
[pid   745] mkdir("./file0", 0777)      = 0
[pid   745] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   745] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   745] chdir("./file0")            = 0
[pid   745] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   745] ioctl(6, LOOP_CLR_FD)       = 0
[pid   745] close(6)                    = 0
[pid   745] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   745] write(6, "#! ./file1\n", 11) = 11
[pid   745] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   745] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   745] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=82, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   44.429121][  T745] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   44.448416][  T746] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-745: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./80/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./80/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./80/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./80/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./80/file0")         = 0
[pid   343] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./80/binderfs")     = 0
[pid   343] umount2("./80/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./80/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./80/cgroup.net")   = 0
[pid   343] umount2("./80/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./80/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./80/cgroup.cpu")   = 0
[pid   343] umount2("./80/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./80/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./80/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./80")               = 0
[pid   343] mkdir("./81", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 750 attached
, child_tidptr=0x55556f72b650) = 83
[pid   750] set_robust_list(0x55556f72b660, 24) = 0
[pid   750] chdir("./81")               = 0
[pid   750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   750] setpgid(0, 0)               = 0
[pid   750] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   750] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   750] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   750] write(3, "1000", 4)         = 4
[pid   750] close(3)                    = 0
[pid   750] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   750] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   750] write(1, "executing program\n", 18) = 18
[pid   750] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   750] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   750] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   750] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   750] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   750] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   750] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   750] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   750] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   750] memfd_create("syzkaller", 0) = 5
[pid   750] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   750] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   750] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   750] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   750] close(5)                    = 0
[pid   750] close(6)                    = 0
[pid   750] mkdir("./file0", 0777)      = 0
[pid   750] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   750] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   750] chdir("./file0")            = 0
[pid   750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   750] ioctl(6, LOOP_CLR_FD)       = 0
[pid   750] close(6)                    = 0
[pid   750] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   750] write(6, "#! ./file1\n", 11) = 11
[pid   750] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   750] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   750] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=83, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   44.591806][  T750] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   44.611416][  T751] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-750: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./81/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./81/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./81/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./81/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./81/file0")         = 0
[pid   343] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./81/binderfs")     = 0
[pid   343] umount2("./81/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./81/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./81/cgroup.net")   = 0
[pid   343] umount2("./81/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./81/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./81/cgroup.cpu")   = 0
[pid   343] umount2("./81/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./81/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./81/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./81")               = 0
[pid   343] mkdir("./82", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 755 attached
, child_tidptr=0x55556f72b650) = 84
[pid   755] set_robust_list(0x55556f72b660, 24) = 0
[pid   755] chdir("./82")               = 0
[pid   755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   755] setpgid(0, 0)               = 0
[pid   755] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   755] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   755] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   755] write(3, "1000", 4)         = 4
[pid   755] close(3)                    = 0
[pid   755] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   755] symlink("/dev/binderfs", "./binderfs") = 0
[pid   755] write(1, "executing program\n", 18executing program
) = 18
[pid   755] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   755] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   755] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   755] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   755] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   755] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   755] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   755] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   755] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   755] memfd_create("syzkaller", 0) = 5
[pid   755] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   755] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   755] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   755] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   755] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   755] close(5)                    = 0
[pid   755] close(6)                    = 0
[pid   755] mkdir("./file0", 0777)      = 0
[pid   755] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   755] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   755] chdir("./file0")            = 0
[pid   755] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   755] ioctl(6, LOOP_CLR_FD)       = 0
[pid   755] close(6)                    = 0
[pid   755] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   755] write(6, "#! ./file1\n", 11) = 11
[pid   755] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   755] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   755] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=84, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   44.747644][  T755] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   44.767759][  T756] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-755: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./82/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./82/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./82/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./82/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./82/file0")         = 0
[pid   343] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./82/binderfs")     = 0
[pid   343] umount2("./82/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./82/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./82/cgroup.net")   = 0
[pid   343] umount2("./82/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./82/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./82/cgroup.cpu")   = 0
[pid   343] umount2("./82/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./82/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./82/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./82")               = 0
[pid   343] mkdir("./83", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 760 attached
, child_tidptr=0x55556f72b650) = 85
[pid   760] set_robust_list(0x55556f72b660, 24) = 0
[pid   760] chdir("./83")               = 0
[pid   760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   760] setpgid(0, 0)               = 0
[pid   760] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   760] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   760] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   760] write(3, "1000", 4)         = 4
[pid   760] close(3)                    = 0
[pid   760] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   760] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   760] write(1, "executing program\n", 18) = 18
[pid   760] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   760] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   760] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   760] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   760] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   760] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   760] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   760] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   760] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   760] memfd_create("syzkaller", 0) = 5
[pid   760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   760] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   760] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   760] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   760] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   760] close(5)                    = 0
[pid   760] close(6)                    = 0
[pid   760] mkdir("./file0", 0777)      = 0
[pid   760] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   760] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   760] chdir("./file0")            = 0
[pid   760] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   760] ioctl(6, LOOP_CLR_FD)       = 0
[pid   760] close(6)                    = 0
[pid   760] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   760] write(6, "#! ./file1\n", 11) = 11
[pid   760] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   760] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   760] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=85, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   44.992289][  T760] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   45.011864][  T761] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-760: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./83/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./83/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./83/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./83/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./83/file0")         = 0
[pid   343] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./83/binderfs")     = 0
[pid   343] umount2("./83/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./83/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./83/cgroup.net")   = 0
[pid   343] umount2("./83/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./83/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./83/cgroup.cpu")   = 0
[pid   343] umount2("./83/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./83/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./83/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./83")               = 0
[pid   343] mkdir("./84", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 765 attached
 <unfinished ...>
[pid   765] set_robust_list(0x55556f72b660, 24) = 0
[pid   765] chdir("./84")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 86
[pid   765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   765] setpgid(0, 0)               = 0
[pid   765] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   765] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   765] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   765] write(3, "1000", 4)         = 4
[pid   765] close(3)                    = 0
[pid   765] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   765] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   765] write(1, "executing program\n", 18) = 18
[pid   765] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   765] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   765] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   765] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   765] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   765] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   765] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   765] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   765] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   765] memfd_create("syzkaller", 0) = 5
[pid   765] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   765] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   765] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   765] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   765] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   765] close(5)                    = 0
[pid   765] close(6)                    = 0
[pid   765] mkdir("./file0", 0777)      = 0
[pid   765] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   765] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   765] chdir("./file0")            = 0
[pid   765] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   765] ioctl(6, LOOP_CLR_FD)       = 0
[pid   765] close(6)                    = 0
[pid   765] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   765] write(6, "#! ./file1\n", 11) = 11
[pid   765] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   765] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   765] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=86, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   45.197837][  T765] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   45.214422][  T765] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./84/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./84/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./84/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./84/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./84/file0")         = 0
[pid   343] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./84/binderfs")     = 0
[pid   343] umount2("./84/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./84/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./84/cgroup.net")   = 0
[pid   343] umount2("./84/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./84/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./84/cgroup.cpu")   = 0
[pid   343] umount2("./84/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./84/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./84/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./84")               = 0
[pid   343] mkdir("./85", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
executing program
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 87
./strace-static-x86_64: Process 770 attached
[pid   770] set_robust_list(0x55556f72b660, 24) = 0
[pid   770] chdir("./85")               = 0
[pid   770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   770] setpgid(0, 0)               = 0
[pid   770] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   770] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   770] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   770] write(3, "1000", 4)         = 4
[pid   770] close(3)                    = 0
[pid   770] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   770] symlink("/dev/binderfs", "./binderfs") = 0
[pid   770] write(1, "executing program\n", 18) = 18
[pid   770] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   770] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   770] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   770] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   770] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   770] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   770] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   770] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   770] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   770] memfd_create("syzkaller", 0) = 5
[pid   770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   770] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   770] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   770] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   770] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   770] close(5)                    = 0
[pid   770] close(6)                    = 0
[pid   770] mkdir("./file0", 0777)      = 0
[pid   770] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   770] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   770] chdir("./file0")            = 0
[pid   770] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   770] ioctl(6, LOOP_CLR_FD)       = 0
[pid   770] close(6)                    = 0
[pid   770] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   770] write(6, "#! ./file1\n", 11) = 11
[pid   770] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   770] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   770] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=87, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   45.337715][  T770] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   45.354566][  T770] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./85/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./85/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./85/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./85/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./85/file0")         = 0
[pid   343] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./85/binderfs")     = 0
[pid   343] umount2("./85/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./85/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./85/cgroup.net")   = 0
[pid   343] umount2("./85/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./85/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./85/cgroup.cpu")   = 0
[pid   343] umount2("./85/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./85/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./85/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./85")               = 0
[pid   343] mkdir("./86", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 775 attached
 <unfinished ...>
[pid   775] set_robust_list(0x55556f72b660, 24) = 0
[pid   775] chdir("./86")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 88
[pid   775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   775] setpgid(0, 0)               = 0
[pid   775] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   775] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   775] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   775] write(3, "1000", 4)         = 4
[pid   775] close(3)                    = 0
[pid   775] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   775] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   775] write(1, "executing program\n", 18) = 18
[pid   775] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   775] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   775] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   775] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   775] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   775] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   775] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   775] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   775] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   775] memfd_create("syzkaller", 0) = 5
[pid   775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   775] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   775] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   775] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   775] close(5)                    = 0
[pid   775] close(6)                    = 0
[pid   775] mkdir("./file0", 0777)      = 0
[pid   775] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   775] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   775] chdir("./file0")            = 0
[pid   775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   775] ioctl(6, LOOP_CLR_FD)       = 0
[pid   775] close(6)                    = 0
[pid   775] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   775] write(6, "#! ./file1\n", 11) = 11
[pid   775] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   775] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   775] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=88, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   45.521458][  T775] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   45.540439][  T776] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-775: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./86/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./86/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./86/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./86/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./86/file0")         = 0
[pid   343] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./86/binderfs")     = 0
[pid   343] umount2("./86/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./86/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./86/cgroup.net")   = 0
[pid   343] umount2("./86/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./86/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./86/cgroup.cpu")   = 0
[pid   343] umount2("./86/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./86/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./86/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./86")               = 0
[pid   343] mkdir("./87", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 780 attached
 <unfinished ...>
[pid   780] set_robust_list(0x55556f72b660, 24) = 0
[pid   780] chdir("./87")               = 0
[pid   780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   780] setpgid(0, 0)               = 0
[pid   780] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 89
[pid   780] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   780] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   780] write(3, "1000", 4)         = 4
[pid   780] close(3)                    = 0
[pid   780] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   780] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   780] write(1, "executing program\n", 18) = 18
[pid   780] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   780] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   780] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   780] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   780] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   780] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   780] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   780] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   780] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   780] memfd_create("syzkaller", 0) = 5
[pid   780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   780] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   780] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   780] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   780] close(5)                    = 0
[pid   780] close(6)                    = 0
[pid   780] mkdir("./file0", 0777)      = 0
[pid   780] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   780] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   780] chdir("./file0")            = 0
[pid   780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   780] ioctl(6, LOOP_CLR_FD)       = 0
[pid   780] close(6)                    = 0
[pid   780] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   780] write(6, "#! ./file1\n", 11) = 11
[pid   780] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   780] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   780] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=89, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   45.726481][  T780] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   45.745488][  T781] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-780: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./87/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./87/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./87/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./87/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./87/file0")         = 0
[pid   343] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./87/binderfs")     = 0
[pid   343] umount2("./87/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./87/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./87/cgroup.net")   = 0
[pid   343] umount2("./87/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./87/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./87/cgroup.cpu")   = 0
[pid   343] umount2("./87/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./87/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./87/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./87")               = 0
[pid   343] mkdir("./88", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 785 attached
 <unfinished ...>
[pid   785] set_robust_list(0x55556f72b660, 24) = 0
[pid   785] chdir("./88")               = 0
[pid   785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   785] setpgid(0, 0)               = 0
[pid   785] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   785] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   785] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   785] write(3, "1000", 4)         = 4
[pid   785] close(3)                    = 0
[pid   785] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   785] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   785] write(1, "executing program\n", 18) = 18
[pid   785] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   785] ioctl(3, VHOST_SET_OWNER <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 90
[pid   785] <... ioctl resumed>, 0)     = 0
[pid   785] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   785] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   785] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   785] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   785] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   785] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   785] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   785] memfd_create("syzkaller", 0) = 5
[pid   785] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   785] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   785] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   785] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   785] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   785] close(5)                    = 0
[pid   785] close(6)                    = 0
[pid   785] mkdir("./file0", 0777)      = 0
[pid   785] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   785] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   785] chdir("./file0")            = 0
[pid   785] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   785] ioctl(6, LOOP_CLR_FD)       = 0
[pid   785] close(6)                    = 0
[pid   785] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   785] write(6, "#! ./file1\n", 11) = 11
[pid   785] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   785] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   785] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=90, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   45.862663][  T785] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   45.879858][  T785] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./88/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./88/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./88/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./88/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./88/file0")         = 0
[pid   343] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./88/binderfs")     = 0
[pid   343] umount2("./88/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./88/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./88/cgroup.net")   = 0
[pid   343] umount2("./88/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./88/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./88/cgroup.cpu")   = 0
[pid   343] umount2("./88/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./88/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./88/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./88")               = 0
[pid   343] mkdir("./89", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 790 attached
 <unfinished ...>
[pid   790] set_robust_list(0x55556f72b660, 24) = 0
[pid   790] chdir("./89")               = 0
[pid   790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   790] setpgid(0, 0)               = 0
[pid   790] symlink("/syzcgroup/unified/syz0", "./cgroup" <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 91
[pid   790] <... symlink resumed>)      = 0
[pid   790] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   790] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   790] write(3, "1000", 4)         = 4
[pid   790] close(3)                    = 0
[pid   790] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   790] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   790] write(1, "executing program\n", 18) = 18
[pid   790] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   790] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   790] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   790] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   790] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   790] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   790] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   790] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   790] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   790] memfd_create("syzkaller", 0) = 5
[pid   790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   790] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   790] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   790] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   790] close(5)                    = 0
[pid   790] close(6)                    = 0
[pid   790] mkdir("./file0", 0777)      = 0
[pid   790] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   790] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   790] chdir("./file0")            = 0
[pid   790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   790] ioctl(6, LOOP_CLR_FD)       = 0
[pid   790] close(6)                    = 0
[pid   790] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   790] write(6, "#! ./file1\n", 11) = 11
[pid   790] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   790] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   790] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=91, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   45.995692][  T790] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   46.015270][  T791] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-790: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./89/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./89/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./89/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./89/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./89/file0")         = 0
[pid   343] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./89/binderfs")     = 0
[pid   343] umount2("./89/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./89/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./89/cgroup.net")   = 0
[pid   343] umount2("./89/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./89/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./89/cgroup.cpu")   = 0
[pid   343] umount2("./89/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./89/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./89/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./89")               = 0
[pid   343] mkdir("./90", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 92
./strace-static-x86_64: Process 795 attached
[pid   795] set_robust_list(0x55556f72b660, 24) = 0
[pid   795] chdir("./90")               = 0
[pid   795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   795] setpgid(0, 0)               = 0
[pid   795] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   795] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   795] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   795] write(3, "1000", 4)         = 4
[pid   795] close(3)                    = 0
[pid   795] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   795] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   795] write(1, "executing program\n", 18) = 18
[pid   795] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   795] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   795] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   795] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   795] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   795] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   795] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   795] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   795] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   795] memfd_create("syzkaller", 0) = 5
[pid   795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   795] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   795] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   795] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   795] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   795] close(5)                    = 0
[pid   795] close(6)                    = 0
[pid   795] mkdir("./file0", 0777)      = 0
[pid   795] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   795] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   795] chdir("./file0")            = 0
[pid   795] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   795] ioctl(6, LOOP_CLR_FD)       = 0
[pid   795] close(6)                    = 0
[pid   795] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   795] write(6, "#! ./file1\n", 11) = 11
[pid   795] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   795] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   795] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=92, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   46.156470][  T795] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./90/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./90/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./90/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./90/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./90/file0")         = 0
[pid   343] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./90/binderfs")     = 0
[pid   343] umount2("./90/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./90/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./90/cgroup.net")   = 0
[pid   343] umount2("./90/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./90/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./90/cgroup.cpu")   = 0
[pid   343] umount2("./90/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./90/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./90/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./90")               = 0
[pid   343] mkdir("./91", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 800 attached
 <unfinished ...>
[pid   800] set_robust_list(0x55556f72b660, 24) = 0
[pid   800] chdir("./91")               = 0
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 93
[pid   800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   800] setpgid(0, 0)               = 0
[pid   800] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   800] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   800] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   800] write(3, "1000", 4)         = 4
[pid   800] close(3)                    = 0
[pid   800] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   800] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   800] write(1, "executing program\n", 18) = 18
[pid   800] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   800] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   800] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   800] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   800] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   800] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   800] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   800] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   800] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   800] memfd_create("syzkaller", 0) = 5
[pid   800] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   800] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   800] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   800] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   800] close(5)                    = 0
[pid   800] close(6)                    = 0
[pid   800] mkdir("./file0", 0777)      = 0
[pid   800] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   800] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   800] chdir("./file0")            = 0
[pid   800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   800] ioctl(6, LOOP_CLR_FD)       = 0
[pid   800] close(6)                    = 0
[pid   800] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   800] write(6, "#! ./file1\n", 11) = 11
[pid   800] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   800] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   800] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=93, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   46.469083][  T801] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-800: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./91/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./91/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./91/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./91/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./91/file0")         = 0
[pid   343] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./91/binderfs")     = 0
[pid   343] umount2("./91/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./91/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./91/cgroup.net")   = 0
[pid   343] umount2("./91/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./91/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./91/cgroup.cpu")   = 0
[pid   343] umount2("./91/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./91/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./91/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./91")               = 0
[pid   343] mkdir("./92", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 94
./strace-static-x86_64: Process 805 attached
[pid   805] set_robust_list(0x55556f72b660, 24) = 0
[pid   805] chdir("./92")               = 0
[pid   805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   805] setpgid(0, 0)               = 0
[pid   805] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   805] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   805] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   805] write(3, "1000", 4)         = 4
[pid   805] close(3)                    = 0
[pid   805] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   805] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   805] write(1, "executing program\n", 18) = 18
[pid   805] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   805] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   805] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   805] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   805] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   805] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   805] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   805] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   805] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   805] memfd_create("syzkaller", 0) = 5
[pid   805] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   805] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   805] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   805] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   805] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   805] close(5)                    = 0
[pid   805] close(6)                    = 0
[pid   805] mkdir("./file0", 0777)      = 0
[pid   805] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   805] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   805] chdir("./file0")            = 0
[pid   805] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   805] ioctl(6, LOOP_CLR_FD)       = 0
[pid   805] close(6)                    = 0
[pid   805] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   805] write(6, "#! ./file1\n", 11) = 11
[pid   805] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   805] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   805] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=94, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./92", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   46.667924][  T806] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-805: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./92/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./92/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./92/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./92/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./92/file0")         = 0
[pid   343] umount2("./92/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./92/binderfs")     = 0
[pid   343] umount2("./92/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./92/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./92/cgroup.net")   = 0
[pid   343] umount2("./92/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./92/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./92/cgroup.cpu")   = 0
[pid   343] umount2("./92/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./92/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./92/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./92")               = 0
[pid   343] mkdir("./93", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 95
./strace-static-x86_64: Process 810 attached
[pid   810] set_robust_list(0x55556f72b660, 24) = 0
[pid   810] chdir("./93")               = 0
[pid   810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   810] setpgid(0, 0)               = 0
[pid   810] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   810] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   810] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   810] write(3, "1000", 4)         = 4
[pid   810] close(3)                    = 0
[pid   810] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   810] symlink("/dev/binderfs", "./binderfs") = 0
[pid   810] write(1, "executing program\n", 18executing program
) = 18
[pid   810] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   810] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   810] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   810] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   810] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   810] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   810] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   810] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   810] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   810] memfd_create("syzkaller", 0) = 5
[pid   810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   810] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   810] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   810] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   810] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   810] close(5)                    = 0
[pid   810] close(6)                    = 0
[pid   810] mkdir("./file0", 0777)      = 0
[pid   810] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   810] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   810] chdir("./file0")            = 0
[pid   810] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   810] ioctl(6, LOOP_CLR_FD)       = 0
[pid   810] close(6)                    = 0
[pid   810] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   810] write(6, "#! ./file1\n", 11) = 11
[pid   810] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   810] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   810] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=95, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./93", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   47.007469][  T811] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-810: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./93/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./93/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./93/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./93/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./93/file0")         = 0
[pid   343] umount2("./93/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./93/binderfs")     = 0
[pid   343] umount2("./93/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./93/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./93/cgroup.net")   = 0
[pid   343] umount2("./93/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./93/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./93/cgroup.cpu")   = 0
[pid   343] umount2("./93/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./93/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./93/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./93")               = 0
[pid   343] mkdir("./94", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 815 attached
, child_tidptr=0x55556f72b650) = 96
[pid   815] set_robust_list(0x55556f72b660, 24) = 0
[pid   815] chdir("./94")               = 0
[pid   815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   815] setpgid(0, 0)               = 0
[pid   815] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   815] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   815] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   815] write(3, "1000", 4)         = 4
[pid   815] close(3)                    = 0
[pid   815] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   815] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   815] write(1, "executing program\n", 18) = 18
[pid   815] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   815] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   815] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   815] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   815] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   815] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   815] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   815] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   815] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   815] memfd_create("syzkaller", 0) = 5
[pid   815] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   815] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   815] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   815] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   815] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   815] close(5)                    = 0
[pid   815] close(6)                    = 0
[pid   815] mkdir("./file0", 0777)      = 0
[pid   815] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   815] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   815] chdir("./file0")            = 0
[pid   815] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   815] ioctl(6, LOOP_CLR_FD)       = 0
[pid   815] close(6)                    = 0
[pid   815] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   815] write(6, "#! ./file1\n", 11) = 11
[pid   815] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   815] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   815] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=96, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./94", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   47.167329][  T815] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm syz-executor243: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./94/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./94/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./94/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./94/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./94/file0")         = 0
[pid   343] umount2("./94/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./94/binderfs")     = 0
[pid   343] umount2("./94/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./94/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./94/cgroup.net")   = 0
[pid   343] umount2("./94/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./94/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./94/cgroup.cpu")   = 0
[pid   343] umount2("./94/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./94/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./94/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./94")               = 0
[pid   343] mkdir("./95", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 820 attached
, child_tidptr=0x55556f72b650) = 97
[pid   820] set_robust_list(0x55556f72b660, 24) = 0
[pid   820] chdir("./95")               = 0
[pid   820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   820] setpgid(0, 0)               = 0
[pid   820] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   820] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   820] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   820] write(3, "1000", 4)         = 4
[pid   820] close(3)                    = 0
[pid   820] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   820] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   820] write(1, "executing program\n", 18) = 18
[pid   820] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   820] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   820] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   820] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   820] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   820] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   820] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   820] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   820] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   820] memfd_create("syzkaller", 0) = 5
[pid   820] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   820] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   820] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   820] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   820] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   820] close(5)                    = 0
[pid   820] close(6)                    = 0
[pid   820] mkdir("./file0", 0777)      = 0
[pid   820] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   820] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   820] chdir("./file0")            = 0
[pid   820] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   820] ioctl(6, LOOP_CLR_FD)       = 0
[pid   820] close(6)                    = 0
[pid   820] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   820] write(6, "#! ./file1\n", 11) = 11
[pid   820] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   820] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   820] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=97, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=1} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./95", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   47.379329][  T821] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-820: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./95/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./95/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./95/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./95/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./95/file0")         = 0
[pid   343] umount2("./95/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./95/binderfs")     = 0
[pid   343] umount2("./95/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./95/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./95/cgroup.net")   = 0
[pid   343] umount2("./95/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./95/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./95/cgroup.cpu")   = 0
[pid   343] umount2("./95/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./95/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./95/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./95")               = 0
[pid   343] mkdir("./96", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FDexecuting program
)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 825 attached
 <unfinished ...>
[pid   825] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 98
[pid   825] <... set_robust_list resumed>) = 0
[pid   825] chdir("./96")               = 0
[pid   825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   825] setpgid(0, 0)               = 0
[pid   825] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   825] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   825] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   825] write(3, "1000", 4)         = 4
[pid   825] close(3)                    = 0
[pid   825] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   825] symlink("/dev/binderfs", "./binderfs") = 0
[pid   825] write(1, "executing program\n", 18) = 18
[pid   825] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   825] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   825] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   825] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   825] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   825] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   825] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   825] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   825] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   825] memfd_create("syzkaller", 0) = 5
[pid   825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   825] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   825] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   825] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   825] close(5)                    = 0
[pid   825] close(6)                    = 0
[pid   825] mkdir("./file0", 0777)      = 0
[pid   825] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   825] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   825] chdir("./file0")            = 0
[pid   825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   825] ioctl(6, LOOP_CLR_FD)       = 0
[pid   825] close(6)                    = 0
[pid   825] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   825] write(6, "#! ./file1\n", 11) = 11
[pid   825] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   825] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   825] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=98, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=2} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./96", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   47.510219][  T826] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-825: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./96/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./96/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./96/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./96/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./96/file0")         = 0
[pid   343] umount2("./96/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./96/binderfs")     = 0
[pid   343] umount2("./96/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./96/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./96/cgroup.net")   = 0
[pid   343] umount2("./96/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./96/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./96/cgroup.cpu")   = 0
[pid   343] umount2("./96/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./96/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./96/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./96")               = 0
[pid   343] mkdir("./97", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556f72b650) = 99
./strace-static-x86_64: Process 830 attached
[pid   830] set_robust_list(0x55556f72b660, 24) = 0
[pid   830] chdir("./97")               = 0
[pid   830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   830] setpgid(0, 0)               = 0
[pid   830] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   830] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   830] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   830] write(3, "1000", 4)         = 4
[pid   830] close(3)                    = 0
[pid   830] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
[pid   830] symlink("/dev/binderfs", "./binderfs") = 0
[pid   830] write(1, "executing program\n", 18executing program
) = 18
[pid   830] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   830] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   830] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   830] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   830] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   830] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   830] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   830] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   830] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   830] memfd_create("syzkaller", 0) = 5
[pid   830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   830] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   830] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   830] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   830] close(5)                    = 0
[pid   830] close(6)                    = 0
[pid   830] mkdir("./file0", 0777)      = 0
[pid   830] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   830] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   830] chdir("./file0")            = 0
[pid   830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   830] ioctl(6, LOOP_CLR_FD)       = 0
[pid   830] close(6)                    = 0
[pid   830] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   830] write(6, "#! ./file1\n", 11) = 11
[pid   830] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   830] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x2000000006c4} ---
[pid   830] +++ killed by SIGBUS (core dumped) +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=99, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=0} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./97", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   47.699118][  T831] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-830: bg 0: block 234: padding at end of block bitmap is not set
[pid   343] umount2("./97/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   343] umount2("./97/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./97/file0", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] umount2("./97/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(4, 0x55556f734730 /* 2 entries */, 32768) = 48
[pid   343] getdents64(4, 0x55556f734730 /* 0 entries */, 32768) = 0
[pid   343] close(4)                    = 0
[pid   343] rmdir("./97/file0")         = 0
[pid   343] umount2("./97/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./97/binderfs")     = 0
[pid   343] umount2("./97/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./97/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./97/cgroup.net")   = 0
[pid   343] umount2("./97/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./97/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./97/cgroup.cpu")   = 0
[pid   343] umount2("./97/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] newfstatat(AT_FDCWD, "./97/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   343] unlink("./97/cgroup")       = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 0 entries */, 32768) = 0
[pid   343] close(3)                    = 0
[pid   343] rmdir("./97")               = 0
[pid   343] mkdir("./98", 0777)         = 0
[pid   343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   343] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   343] close(3)                    = 0
[pid   343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 835 attached
 <unfinished ...>
[pid   835] set_robust_list(0x55556f72b660, 24 <unfinished ...>
[pid   343] <... clone resumed>, child_tidptr=0x55556f72b650) = 100
[pid   835] <... set_robust_list resumed>) = 0
[pid   835] chdir("./98")               = 0
[pid   835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   835] setpgid(0, 0)               = 0
[pid   835] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   835] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   835] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   835] write(3, "1000", 4)         = 4
[pid   835] close(3)                    = 0
[pid   835] read(200, 0x7ffde2569890, 1000) = -1 EAGAIN (Resource temporarily unavailable)
executing program
[pid   835] symlink("/dev/binderfs", "./binderfs") = 0
[pid   835] write(1, "executing program\n", 18) = 18
[pid   835] openat(AT_FDCWD, "/dev/vhost-vsock", O_RDWR) = 3
[pid   835] ioctl(3, VHOST_SET_OWNER, 0) = 0
[pid   835] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000300) = 0
[pid   835] ioctl(3, VHOST_SET_MEM_TABLE, 0x200000003380) = 0
[pid   835] eventfd2(118, EFD_SEMAPHORE) = 4
[pid   835] ioctl(3, VHOST_SET_VRING_ERR, 0x2000000001c0) = 0
[pid   835] ioctl(3, VHOST_SET_VRING_ADDR, 0x200000000240) = 0
[pid   835] ioctl(3, VHOST_SET_VRING_KICK, 0x200000000000) = 0
[pid   835] ioctl(3, VHOST_VSOCK_SET_RUNNING, 0x200000000140) = 0
[pid   835] memfd_create("syzkaller", 0) = 5
[pid   835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fca8e8ff000
[pid   835] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   835] munmap(0x7fca8e8ff000, 138412032) = 0
[pid   835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   835] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid   835] close(5)                    = 0
[pid   835] close(6)                    = 0
[pid   835] mkdir("./file0", 0777)      = 0
[pid   835] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   835] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid   835] chdir("./file0")            = 0
[pid   835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid   835] ioctl(6, LOOP_CLR_FD)       = 0
[pid   835] close(6)                    = 0
[pid   835] openat(AT_FDCWD, "hugetlb.2MB.usage_in_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid   835] write(6, "#! ./file1\n", 11) = 11
[pid   835] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_SEM|PROT_GROWSUP|0x800000, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 6, 0) = 0x200000000000
[pid   835] epoll_ctl(-1, EPOLL_CTL_ADD, 6, {events=EPOLLOUT|EPOLLEXCLUSIVE|EPOLLET, data={u32=0, u64=0}}) = -1 EBADF (Bad file descriptor)
[pid   835] close(3)                    = 0
[pid   835] close(4)                    = 0
[pid   835] close(5)                    = 0
[pid   835] close(6)                    = 0
[pid   835] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   835] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   835] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   835] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   835] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   835] exit_group(0)               = ?
[pid   835] +++ exited with 0 +++
[pid   343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   343] umount2("./98", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   343] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid   343] getdents64(3, 0x55556f72c6f0 /* 7 entries */, 32768) = 208
[   47.908216][  T836] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-835: bg 0: block 234: padding at end of block bitmap is not set
[   47.940303][    T7] ------------[ cut here ]------------
[   47.945788][    T7] kernel BUG at fs/ext4/inode.c:2844!
[   47.951806][    T7] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   47.957869][    T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
[   47.967706][    T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   47.977780][    T7] Workqueue: writeback wb_workfn (flush-7:0)
[   47.983763][    T7] RIP: 0010:ext4_writepages+0x2f83/0x2fb0
[   47.989461][    T7] Code: 0f 94 c6 bf 02 00 00 00 e8 6a 29 a1 ff 84 db 75 2e e8 11 27 a1 ff 49 bc 00 00 00 00 00 fc ff df e9 47 f9 ff ff e8 fd 26 a1 ff <0f> 0b e8 f6 26 a1 ff 0f 0b e8 ef 26 a1 ff e8 ba ef 41 ff eb 9b e8
[   48.009053][    T7] RSP: 0018:ffff8881f5db71a0 EFLAGS: 00010293
[   48.015110][    T7] RAX: ffffffff81be57e3 RBX: 0000010410000000 RCX: ffff8881f5d6cec0
[   48.023066][    T7] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000
[   48.031019][    T7] RBP: ffff8881f5db74f0 R08: dffffc0000000000 R09: ffffed103b9e700b
[   48.038972][    T7] R10: ffffed103b9e700b R11: 1ffff1103b9e700a R12: dffffc0000000000
[   48.046922][    T7] R13: ffff8881f5db7810 R14: 0000010000000000 R15: ffff8881dcf38128
[   48.054874][    T7] FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   48.064040][    T7] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.070606][    T7] CR2: 000055556f7346f8 CR3: 00000001ddf2b000 CR4: 00000000003406a0
[   48.078554][    T7] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.086506][    T7] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.094451][    T7] Call Trace:
[   48.097723][    T7]  ? __kasan_check_read+0x11/0x20
[   48.102731][    T7]  ? __find_get_block+0xab4/0xe90
[   48.107742][    T7]  ? write_boundary_block+0x140/0x140
[   48.113113][    T7]  ? ext4_readpage+0x310/0x310
[   48.117897][    T7]  ? __getblk_gfp+0x3b/0x760
[   48.122469][    T7]  ? debug_smp_processor_id+0x20/0x20
[   48.127822][    T7]  ? ext4_get_group_desc+0x249/0x2a0
[   48.133095][    T7]  ? debug_smp_processor_id+0x20/0x20
[   48.138446][    T7]  ? ext4_readpage+0x310/0x310
[   48.143187][    T7]  do_writepages+0x127/0x270
[   48.147754][    T7]  ? debug_smp_processor_id+0x20/0x20
[   48.153104][    T7]  ? __writepage+0x120/0x120
[   48.157675][    T7]  ? __kasan_check_write+0x14/0x20
[   48.162776][    T7]  ? _raw_spin_lock+0x8e/0xe0
[   48.167431][    T7]  ? __kasan_check_write+0x14/0x20
[   48.172519][    T7]  ? _raw_spin_lock+0x8e/0xe0
[   48.177186][    T7]  __writeback_single_inode+0xd9/0xc30
[   48.182620][    T7]  ? wbc_attach_and_unlock_inode+0x175/0x5b0
[   48.188585][    T7]  writeback_sb_inodes+0x94f/0x1700
[   48.193762][    T7]  ? _raw_spin_lock+0x8e/0xe0
[   48.198420][    T7]  ? queue_io+0x4e0/0x4e0
[   48.202749][    T7]  ? __kasan_check_read+0x11/0x20
[   48.207780][    T7]  wb_writeback+0x3e1/0xc20
[   48.212288][    T7]  ? wb_io_lists_depopulated+0x170/0x170
[   48.217916][    T7]  ? check_preemption_disabled+0x9b/0x300
[   48.223626][    T7]  ? debug_smp_processor_id+0x20/0x20
[   48.228997][    T7]  ? __kasan_check_write+0x14/0x20
[   48.234124][    T7]  ? check_preemption_disabled+0x9b/0x300
[   48.239837][    T7]  wb_workfn+0x375/0xf90
[   48.244086][    T7]  ? inode_wait_for_writeback+0x200/0x200
[   48.249892][    T7]  ? _raw_spin_unlock_irq+0x4e/0x70
[   48.255175][    T7]  ? finish_task_switch+0x12e/0x590
[   48.260411][    T7]  ? __schedule+0xa57/0x12a0
[   48.265001][    T7]  ? __kasan_check_read+0x11/0x20
[   48.270054][    T7]  ? read_word_at_a_time+0x12/0x20
[   48.275150][    T7]  ? strscpy+0x9b/0x290
[   48.279295][    T7]  process_one_work+0x73b/0xcc0
[   48.284135][    T7]  worker_thread+0xa5c/0x13b0
[   48.288893][    T7]  ? __kasan_check_read+0x11/0x20
[   48.294016][    T7]  kthread+0x31e/0x3a0
[   48.298060][    T7]  ? worker_clr_flags+0x190/0x190
[   48.303059][    T7]  ? kthread_blkcg+0xd0/0xd0
[   48.307648][    T7]  ret_from_fork+0x1f/0x30
[   48.312059][    T7] Modules linked in:
[   48.316579][    T7] ---[ end trace 3f4feebcf0f4988a ]---
[   48.322077][    T7] RIP: 0010:ext4_writepages+0x2f83/0x2fb0
[   48.327919][    T7] Code: 0f 94 c6 bf 02 00 00 00 e8 6a 29 a1 ff 84 db 75 2e e8 11 27 a1 ff 49 bc 00 00 00 00 00 fc ff df e9 47 f9 ff ff e8 fd 26 a1 ff <0f> 0b e8 f6 26 a1 ff 0f 0b e8 ef 26 a1 ff e8 ba ef 41 ff eb 9b e8
[   48.348509][    T7] RSP: 0018:ffff8881f5db71a0 EFLAGS: 00010293
[   48.354571][    T7] RAX: ffffffff81be57e3 RBX: 0000010410000000 RCX: ffff8881f5d6cec0
[   48.362549][    T7] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000
[   48.370554][    T7] RBP: ffff8881f5db74f0 R08: dffffc0000000000 R09: ffffed103b9e700b
[   48.378575][    T7] R10: ffffed103b9e700b R11: 1ffff1103b9e700a R12: dffffc0000000000
[   48.386564][    T7] R13: ffff8881f5db7810 R14: 0000010000000000 R15: ffff8881dcf38128
[   48.394518][    T7] FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   48.403501][    T7] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.410216][    T7] CR2: 000055556f7346f8 CR3: 0000000005c0e000 CR4: 00000000003406a0
[   48.418308][    T7] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.426310][    T7] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.434480][    T7] Kernel panic - not syncing: Fatal exception
[   48.440755][    T7] Kernel Offset: disabled
[   48.445079][    T7] Rebooting in 86400 seconds..