./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3472947088

<...>
Warning: Permanently added '10.128.0.240' (ED25519) to the list of known hosts.
execve("./syz-executor3472947088", ["./syz-executor3472947088"], 0x7ffe0d97a040 /* 10 vars */) = 0
brk(NULL)                               = 0x5555864d2000
brk(0x5555864d2e00)                     = 0x5555864d2e00
arch_prctl(ARCH_SET_FS, 0x5555864d2480) = 0
set_tid_address(0x5555864d2750)         = 288
set_robust_list(0x5555864d2760, 24)     = 0
rseq(0x5555864d2da0, 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-executor3472947088", 4096) = 28
getrandom("\x0c\x15\xba\xf4\x93\x4e\x6f\xc8", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555864d2e00
brk(0x5555864f3e00)                     = 0x5555864f3e00
brk(0x5555864f4000)                     = 0x5555864f4000
mprotect(0x7f8922736000, 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
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f892268cdf0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f8922694bf0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f892268cdf0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f8922694bf0}, NULL, 8) = 0
mkdir("./syzkaller.qNGWag", 0700)       = 0
chmod("./syzkaller.qNGWag", 0777)       = 0
chdir("./syzkaller.qNGWag")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555864d2750) = 289
./strace-static-x86_64: Process 289 attached
[pid   289] set_robust_list(0x5555864d2760, 24) = 0
[pid   289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   289] getppid()                   = 0
[pid   289] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   289] unshare(CLONE_NEWNS)        = 0
[pid   289] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   289] unshare(CLONE_NEWCGROUP)    = 0
[pid   289] unshare(CLONE_NEWUTS)       = 0
[pid   289] unshare(CLONE_SYSVSEM)      = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] getpid()                    = 1
[pid   289] 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|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, 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|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   289] 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|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, 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|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   289] unshare(CLONE_NEWNET)       = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "0 65535", 7)      = 7
[pid   289] close(3)                    = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "100000", 6)       = 6
[pid   289] close(3)                    = 0
[pid   289] mkdir("./syz-tmp", 0777)    = 0
[   22.628444][   T30] audit: type=1400 audit(1752639728.250:64): avc:  denied  { execmem } for  pid=288 comm="syz-executor347" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   22.656231][   T30] audit: type=1400 audit(1752639728.280:65): avc:  denied  { mounton } for  pid=289 comm="syz-executor347" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   289] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   289] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   289] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   289] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   289] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   289] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   289] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] 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   289] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   289] 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   289] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   289] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   289] chdir("/")                  = 0
[pid   289] umount2("./pivot", MNT_DETACH) = 0
[pid   289] chroot("./newroot")         = 0
[pid   289] chdir("/")                  = 0
[pid   289] mkdir("/dev/gadgetfs", 0777) = 0
[   22.695960][   T30] audit: type=1400 audit(1752639728.320:66): avc:  denied  { mounton } for  pid=289 comm="syz-executor347" path="/root/syzkaller.qNGWag/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   22.720778][   T30] audit: type=1400 audit(1752639728.320:67): avc:  denied  { mount } for  pid=289 comm="syz-executor347" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   289] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   289] mkdir("/dev/binderfs", 0777) = 0
[pid   289] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   289] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   289] mkdir("./0", 0777)          = 0
[pid   289] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   289] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   289] close(3)                    = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555864d2750) = 2
./strace-static-x86_64: Process 291 attached
[pid   291] set_robust_list(0x5555864d2760, 24) = 0
[pid   291] chdir("./0")                = 0
[pid   291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   291] setpgid(0, 0)               = 0
[pid   291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   291] write(3, "1000", 4)         = 4
[pid   291] close(3)                    = 0
[pid   291] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   291] write(1, "executing program\n", 18) = 18
[pid   291] mkdir("./file0", 0777)      = 0
[pid   291] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   291] mount("./file0", "./file0", "incremental-fs", MS_NOEXEC|MS_NOATIME|MS_STRICTATIME, NULL) = 0
[pid   291] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   22.722336][  T289] request_module fs-gadgetfs succeeded, but still no fs?
[   22.743331][   T30] audit: type=1400 audit(1752639728.330:68): avc:  denied  { mounton } for  pid=289 comm="syz-executor347" path="/root/syzkaller.qNGWag/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   22.762150][  T291] =======================================================
[   22.762150][  T291] WARNING: The mand mount option has been deprecated and
[   22.762150][  T291]          and is ignored by this kernel. Remove the mand
[pid   291] mount("./file0/file0", "./file0/file0", NULL, MS_NOSUID|MS_NOEXEC|MS_SYNCHRONOUS|MS_MANDLOCK|MS_BIND|MS_POSIXACL|MS_I_VERSION, NULL) = 0
[pid   291] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   291] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   291] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   291] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   291] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   291] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   291] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   291] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   291] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   291] exit_group(0)               = ?
[pid   291] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   289] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x5555864d37f0 /* 4 entries */, 32768) = 112
[pid   289] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   289] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   289] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   289] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(4, 0x5555864db830 /* 4 entries */, 32768) = 112
[pid   289] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   289] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/file0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   289] newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(5, 0x5555864e3870 /* 4 entries */, 32768) = 112
[pid   289] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/file0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0/file0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   289] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(6, 0x5555864eb8b0 /* 2 entries */, 32768) = 48
[pid   289] getdents64(6, 0x5555864eb8b0 /* 0 entries */, 32768) = 0
[pid   289] close(6)                    = 0
[pid   289] rmdir("./0/file0/file0/.incomplete") = 0
[pid   289] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/file0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0/file0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   289] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(6, 0x5555864eb8b0 /* 2 entries */, 32768) = 48
[pid   289] getdents64(6, 0x5555864eb8b0 /* 0 entries */, 32768) = 0
[pid   289] close(6)                    = 0
[pid   289] rmdir("./0/file0/file0/.index") = 0
[pid   289] getdents64(5, 0x5555864e3870 /* 0 entries */, 32768) = 0
[pid   289] close(5)                    = 0
[pid   289] rmdir("./0/file0/file0")    = -1 EBUSY (Device or resource busy)
[pid   289] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] exit_group(1)               = ?
[   22.762150][  T291]          option from the mount to silence this warning.
[   22.762150][  T291] =======================================================
[   22.780543][   T30] audit: type=1400 audit(1752639728.330:69): avc:  denied  { mount } for  pid=289 comm="syz-executor347" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   22.832532][   T30] audit: type=1400 audit(1752639728.330:70): avc:  denied  { mounton } for  pid=289 comm="syz-executor347" path="/root/syzkaller.qNGWag/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[   22.859639][  T289] ------------[ cut here ]------------
[   22.859842][   T30] audit: type=1400 audit(1752639728.330:71): avc:  denied  { mounton } for  pid=289 comm="syz-executor347" path="/root/syzkaller.qNGWag/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=15004 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   22.865126][  T289] WARNING: CPU: 1 PID: 289 at fs/inode.c:335 drop_nlink+0xc5/0x110
[   22.900659][   T30] audit: type=1400 audit(1752639728.330:72): avc:  denied  { unmount } for  pid=289 comm="syz-executor347" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   22.900681][   T30] audit: type=1400 audit(1752639728.350:73): avc:  denied  { mounton } for  pid=289 comm="syz-executor347" path="/dev/gadgetfs" dev="devtmpfs" ino=556 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   22.943435][  T289] Modules linked in:
[   22.947336][  T289] CPU: 1 PID: 289 Comm: syz-executor347 Not tainted 5.15.188-syzkaller-00606-g6b619c45dff5 #0
[   22.957701][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   22.967788][  T289] RIP: 0010:drop_nlink+0xc5/0x110
[   22.972825][  T289] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 43 3b f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 1b c2 b3 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   22.992611][  T289] RSP: 0018:ffffc90000967b28 EFLAGS: 00010293
[   22.998683][  T289] RAX: ffffffff81b4edb5 RBX: ffff888123c05f28 RCX: ffff888105982780
[   23.006700][  T289] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.014695][  T289] RBP: ffffc90000967b50 R08: 0000000000000004 R09: 0000000000000003
[   23.022699][  T289] R10: fffff5200012cf54 R11: 1ffff9200012cf54 R12: dffffc0000000000
[   23.030681][  T289] R13: 1ffff11024780bee R14: ffff888123c05f70 R15: 0000000000000000
[   23.038629][  T289] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   23.047592][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.054200][  T289] CR2: 00007f892273d1d0 CR3: 000000000660f000 CR4: 00000000003506a0
[   23.062188][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.070170][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.078138][  T289] Call Trace:
[   23.081423][  T289]  <TASK>
[   23.084356][  T289]  shmem_rmdir+0x5b/0x90
[   23.088629][  T289]  vfs_rmdir+0x313/0x460
[   23.092874][  T289]  incfs_kill_sb+0x105/0x220
[   23.097467][  T289]  deactivate_locked_super+0xa0/0x100
[   23.102836][  T289]  deactivate_super+0xaf/0xe0
[   23.107675][  T289]  cleanup_mnt+0x446/0x500
[   23.112540][  T289]  __cleanup_mnt+0x19/0x20
[   23.116947][  T289]  task_work_run+0x127/0x190
[   23.121535][  T289]  do_exit+0xa7e/0x27a0
[   23.125690][  T289]  ? ptrace_stop+0x6f4/0xa80
[   23.130299][  T289]  ? put_task_struct+0x90/0x90
[   23.135063][  T289]  ? ptrace_notify+0x1c4/0x250
[   23.139845][  T289]  ? do_notify_parent+0x800/0x800
[   23.144879][  T289]  do_group_exit+0x141/0x310
[   23.149472][  T289]  ? debug_smp_processor_id+0x17/0x20
[   23.154838][  T289]  __x64_sys_exit_group+0x3f/0x40
[   23.159881][  T289]  x64_sys_call+0x832/0x9a0
[   23.164375][  T289]  do_syscall_64+0x4c/0xa0
[   23.168766][  T289]  ? clear_bhb_loop+0x50/0xa0
[   23.173441][  T289]  ? clear_bhb_loop+0x50/0xa0
[   23.178108][  T289]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   23.184029][  T289] RIP: 0033:0x7f89226bff89
[   23.188430][  T289] Code: Unable to access opcode bytes at RIP 0x7f89226bff5f.
[   23.195789][  T289] RSP: 002b:00007ffe1b1afc08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   23.204297][  T289] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89226bff89
[   23.212288][  T289] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   23.220371][  T289] RBP: 00007f892273c370 R08: ffffffffffffffb8 R09: 0000000000000000
[   23.228367][  T289] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f892273c370
[   23.236354][  T289] R13: 0000000000000000 R14: 00007f892273cdc0 R15: 00007f892268dcf0
[   23.244369][  T289]  </TASK>
[   23.247368][  T289] ---[ end trace 68a85de39acdfde1 ]---
[   23.252876][  T289] ==================================================================
[   23.260928][  T289] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   23.267149][  T289] Write of size 4 at addr 0000000000000170 by task syz-executor347/289
[   23.275357][  T289] 
[   23.277658][  T289] CPU: 1 PID: 289 Comm: syz-executor347 Tainted: G        W         5.15.188-syzkaller-00606-g6b619c45dff5 #0
[   23.289256][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   23.299288][  T289] Call Trace:
[   23.302539][  T289]  <TASK>
[   23.305442][  T289]  __dump_stack+0x21/0x30
[   23.309745][  T289]  dump_stack_lvl+0xee/0x150
[   23.314304][  T289]  ? show_regs_print_info+0x20/0x20
[   23.319471][  T289]  ? _raw_spin_lock+0x8e/0xe0
[   23.324120][  T289]  ? _raw_spin_trylock_bh+0x130/0x130
[   23.329459][  T289]  ? ihold+0x20/0x60
[   23.333345][  T289]  kasan_report+0xe7/0x140
[   23.337730][  T289]  ? ihold+0x20/0x60
[   23.341598][  T289]  kasan_check_range+0x280/0x290
[   23.346508][  T289]  __kasan_check_write+0x14/0x20
[   23.351415][  T289]  ihold+0x20/0x60
[   23.355112][  T289]  vfs_rmdir+0x1f0/0x460
[   23.359361][  T289]  incfs_kill_sb+0x105/0x220
[   23.363923][  T289]  deactivate_locked_super+0xa0/0x100
[   23.369270][  T289]  deactivate_super+0xaf/0xe0
[   23.373918][  T289]  cleanup_mnt+0x446/0x500
[   23.378305][  T289]  __cleanup_mnt+0x19/0x20
[   23.382715][  T289]  task_work_run+0x127/0x190
[   23.387277][  T289]  do_exit+0xa7e/0x27a0
[   23.391405][  T289]  ? ptrace_stop+0x6f4/0xa80
[   23.395967][  T289]  ? put_task_struct+0x90/0x90
[   23.400700][  T289]  ? ptrace_notify+0x1c4/0x250
[   23.405435][  T289]  ? do_notify_parent+0x800/0x800
[   23.410432][  T289]  do_group_exit+0x141/0x310
[   23.415005][  T289]  ? debug_smp_processor_id+0x17/0x20
[   23.420357][  T289]  __x64_sys_exit_group+0x3f/0x40
[   23.425361][  T289]  x64_sys_call+0x832/0x9a0
[   23.429841][  T289]  do_syscall_64+0x4c/0xa0
[   23.434235][  T289]  ? clear_bhb_loop+0x50/0xa0
[   23.438890][  T289]  ? clear_bhb_loop+0x50/0xa0
[   23.443543][  T289]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   23.449416][  T289] RIP: 0033:0x7f89226bff89
[   23.453809][  T289] Code: Unable to access opcode bytes at RIP 0x7f89226bff5f.
[   23.461148][  T289] RSP: 002b:00007ffe1b1afc08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   23.469539][  T289] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89226bff89
[   23.477487][  T289] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   23.485435][  T289] RBP: 00007f892273c370 R08: ffffffffffffffb8 R09: 0000000000000000
[   23.493384][  T289] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f892273c370
[   23.501334][  T289] R13: 0000000000000000 R14: 00007f892273cdc0 R15: 00007f892268dcf0
[   23.509288][  T289]  </TASK>
[   23.512283][  T289] ==================================================================
[   23.520317][  T289] Disabling lock debugging due to kernel taint
[   23.526533][  T289] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   23.534328][  T289] #PF: supervisor write access in kernel mode
[   23.540371][  T289] #PF: error_code(0x0002) - not-present page
[   23.546323][  T289] PGD 0 P4D 0 
[   23.549676][  T289] Oops: 0002 [#1] PREEMPT SMP KASAN
[   23.554851][  T289] CPU: 1 PID: 289 Comm: syz-executor347 Tainted: G    B   W         5.15.188-syzkaller-00606-g6b619c45dff5 #0
[   23.566451][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   23.576485][  T289] RIP: 0010:ihold+0x26/0x60
[   23.580972][  T289] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 31 ba b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 30 33 f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 b1
[   23.600556][  T289] RSP: 0018:ffffc90000967b68 EFLAGS: 00010246
[   23.606601][  T289] RAX: ffff888105982700 RBX: 0000000000000000 RCX: ffff888105982780
[   23.614549][  T289] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   23.622496][  T289] RBP: ffffc90000967b78 R08: 0000000000000004 R09: 0000000000000003
[   23.630443][  T289] R10: fffffbfff0e17c4c R11: 1ffffffff0e17c4c R12: 1ffff11023f50a4a
[   23.638392][  T289] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   23.646339][  T289] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   23.655250][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.661811][  T289] CR2: 0000000000000170 CR3: 000000000660f000 CR4: 00000000003506a0
[   23.669762][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.677710][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.685673][  T289] Call Trace:
[   23.688938][  T289]  <TASK>
[   23.691849][  T289]  vfs_rmdir+0x1f0/0x460
[   23.696076][  T289]  incfs_kill_sb+0x105/0x220
[   23.700655][  T289]  deactivate_locked_super+0xa0/0x100
[   23.706023][  T289]  deactivate_super+0xaf/0xe0
[   23.710686][  T289]  cleanup_mnt+0x446/0x500
[   23.715089][  T289]  __cleanup_mnt+0x19/0x20
[   23.719497][  T289]  task_work_run+0x127/0x190
[   23.724072][  T289]  do_exit+0xa7e/0x27a0
[   23.728207][  T289]  ? ptrace_stop+0x6f4/0xa80
[   23.732882][  T289]  ? put_task_struct+0x90/0x90
[   23.737639][  T289]  ? ptrace_notify+0x1c4/0x250
[   23.742386][  T289]  ? do_notify_parent+0x800/0x800
[   23.747483][  T289]  do_group_exit+0x141/0x310
[   23.752060][  T289]  ? debug_smp_processor_id+0x17/0x20
[   23.757415][  T289]  __x64_sys_exit_group+0x3f/0x40
[   23.762419][  T289]  x64_sys_call+0x832/0x9a0
[   23.766901][  T289]  do_syscall_64+0x4c/0xa0
[   23.771292][  T289]  ? clear_bhb_loop+0x50/0xa0
[   23.775946][  T289]  ? clear_bhb_loop+0x50/0xa0
[   23.780601][  T289]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   23.786472][  T289] RIP: 0033:0x7f89226bff89
[   23.790865][  T289] Code: Unable to access opcode bytes at RIP 0x7f89226bff5f.
[   23.798203][  T289] RSP: 002b:00007ffe1b1afc08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   23.806596][  T289] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89226bff89
[   23.814551][  T289] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   23.822513][  T289] RBP: 00007f892273c370 R08: ffffffffffffffb8 R09: 0000000000000000
[   23.830682][  T289] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f892273c370
[   23.838637][  T289] R13: 0000000000000000 R14: 00007f892273cdc0 R15: 00007f892268dcf0
[   23.846590][  T289]  </TASK>
[   23.849596][  T289] Modules linked in:
[   23.853480][  T289] CR2: 0000000000000170
[   23.857617][  T289] ---[ end trace 68a85de39acdfde2 ]---
[   23.863053][  T289] RIP: 0010:ihold+0x26/0x60
[   23.867543][  T289] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 31 ba b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 30 33 f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 b1
[   23.887135][  T289] RSP: 0018:ffffc90000967b68 EFLAGS: 00010246
[   23.893192][  T289] RAX: ffff888105982700 RBX: 0000000000000000 RCX: ffff888105982780
[   23.901176][  T289] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   23.909127][  T289] RBP: ffffc90000967b78 R08: 0000000000000004 R09: 0000000000000003
[   23.917082][  T289] R10: fffffbfff0e17c4c R11: 1ffffffff0e17c4c R12: 1ffff11023f50a4a
[   23.925030][  T289] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   23.932987][  T289] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   23.941896][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.948465][  T289] CR2: 0000000000000170 CR3: 000000000660f000 CR4: 00000000003506a0
[   23.956416][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.964367][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.972318][  T289] Kernel panic - not syncing: Fatal exception
[   23.978522][  T289] Kernel Offset: disabled
[   23.982914][  T289] Rebooting in 86400 seconds..