./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1705417824

<...>
Warning: Permanently added '10.128.10.11' (ED25519) to the list of known hosts.
execve("./syz-executor1705417824", ["./syz-executor1705417824"], 0x7ffc6a06cf50 /* 10 vars */) = 0
brk(NULL)                               = 0x555563047000
brk(0x555563047e00)                     = 0x555563047e00
arch_prctl(ARCH_SET_FS, 0x555563047480) = 0
set_tid_address(0x555563047750)         = 290
set_robust_list(0x555563047760, 24)     = 0
rseq(0x555563047da0, 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-executor1705417824", 4096) = 28
getrandom("\xfb\x0e\x54\xae\xd3\x6c\xf6\x40", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555563047e00
brk(0x555563068e00)                     = 0x555563068e00
brk(0x555563069000)                     = 0x555563069000
mprotect(0x7fb1cfa7f000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
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=0x7fb1cf9d5da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fb1cf9dda30}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7fb1cf9d5da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fb1cf9dda30}, NULL, 8) = 0
mkdir("./syzkaller.bys70j", 0700)       = 0
chmod("./syzkaller.bys70j", 0777)       = 0
chdir("./syzkaller.bys70j")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563047750) = 291
./strace-static-x86_64: Process 291 attached
[pid   291] set_robust_list(0x555563047760, 24) = 0
[pid   291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   291] getppid()                   = 0
[pid   291] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   291] unshare(CLONE_NEWNS)        = 0
[pid   291] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   291] unshare(CLONE_NEWCGROUP)    = 0
[pid   291] unshare(CLONE_NEWUTS)       = 0
[pid   291] unshare(CLONE_SYSVSEM)      = 0
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] getpid()                    = 1
[pid   291] 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   291] 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   291] unshare(CLONE_NEWNET)       = 0
[pid   291] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   291] write(3, "0 65535", 7)      = 7
[pid   291] close(3)                    = 0
[pid   291] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   291] write(3, "100000", 6)       = 6
[pid   291] close(3)                    = 0
[pid   291] mkdir("./syz-tmp", 0777)    = 0
[pid   291] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   291] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   291] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   291] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   291] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   291] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   291] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] 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   291] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   291] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   291] chdir("/")                  = 0
[   23.420712][   T24] audit: type=1400 audit(1736067059.410:66): avc:  denied  { execmem } for  pid=290 comm="syz-executor170" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   23.440137][   T24] audit: type=1400 audit(1736067059.430:67): avc:  denied  { mounton } for  pid=291 comm="syz-executor170" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   291] umount2("./pivot", MNT_DETACH) = 0
[pid   291] chroot("./newroot")         = 0
[pid   291] chdir("/")                  = 0
[pid   291] mkdir("/dev/gadgetfs", 0777) = 0
[pid   291] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   291] mkdir("/dev/binderfs", 0777) = 0
[pid   291] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   291] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   291] mkdir("./0", 0777)          = 0
[pid   291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   291] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   291] close(3)                    = 0
[pid   291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563047750) = 2
./strace-static-x86_64: Process 293 attached
[pid   293] set_robust_list(0x555563047760, 24) = 0
[pid   293] chdir("./0")                = 0
[pid   293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   293] setpgid(0, 0)               = 0
[pid   293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   293] write(3, "1000", 4)         = 4
[pid   293] close(3)                    = 0
[pid   293] symlink("/dev/binderfs", "./binderfs") = 0
[pid   293] write(1, "executing program\n", 18executing program
) = 18
[pid   293] mkdir("./file0", 0777)      = 0
[pid   293] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   293] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   23.461505][   T24] audit: type=1400 audit(1736067059.450:68): avc:  denied  { mounton } for  pid=291 comm="syz-executor170" path="/root/syzkaller.bys70j/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   23.485819][   T24] audit: type=1400 audit(1736067059.450:69): avc:  denied  { mount } for  pid=291 comm="syz-executor170" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   23.488769][  T291] request_module fs-gadgetfs succeeded, but still no fs?
[pid   293] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   293] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   293] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   293] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   293] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   293] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   293] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   293] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   293] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   293] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   293] exit_group(0)               = ?
[pid   293] +++ exited with 0 +++
[pid   291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   291] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   291] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   291] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(3, 0x5555630487f0 /* 6 entries */, 32768) = 176
[pid   291] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   291] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   291] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(4, 0x555563050830 /* 2 entries */, 32768) = 48
[pid   291] getdents64(4, 0x555563050830 /* 0 entries */, 32768) = 0
[pid   291] close(4)                    = 0
[pid   291] rmdir("./0/.incomplete")    = 0
[pid   291] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   291] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   291] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(4, 0x555563050830 /* 2 entries */, 32768) = 48
[pid   291] getdents64(4, 0x555563050830 /* 0 entries */, 32768) = 0
[pid   291] close(4)                    = 0
[pid   291] rmdir("./0/.index")         = 0
[   23.507672][   T24] audit: type=1400 audit(1736067059.450:70): avc:  denied  { mounton } for  pid=291 comm="syz-executor170" path="/root/syzkaller.bys70j/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
[   23.531045][  T293] incfs: ino conflict with backing FS 8
[   23.543440][   T24] audit: type=1400 audit(1736067059.450:71): avc:  denied  { mount } for  pid=291 comm="syz-executor170" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   23.566723][   T24] audit: type=1400 audit(1736067059.450:72): avc:  denied  { mounton } for  pid=291 comm="syz-executor170" path="/root/syzkaller.bys70j/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
[   23.593430][  T291] ------------[ cut here ]------------
[   23.598796][  T291] WARNING: CPU: 1 PID: 291 at fs/inode.c:304 drop_nlink+0xc1/0x110
[   23.606496][  T291] Modules linked in:
[   23.607388][   T24] audit: type=1400 audit(1736067059.460:73): avc:  denied  { mounton } for  pid=291 comm="syz-executor170" path="/root/syzkaller.bys70j/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14426 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   23.611016][  T291] CPU: 1 PID: 291 Comm: syz-executor170 Not tainted 5.10.232-syzkaller-00746-g49e8ba0a684f #0
[   23.648834][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   23.659101][  T291] RIP: 0010:drop_nlink+0xc1/0x110
[   23.664047][  T291] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 77 cb f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ef 2c b3 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   23.677278][   T24] audit: type=1400 audit(1736067059.460:74): avc:  denied  { unmount } for  pid=291 comm="syz-executor170" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   23.683855][  T291] RSP: 0018:ffffc90000b57be8 EFLAGS: 00010293
[   23.722600][  T291] RAX: ffffffff81b79191 RBX: 0000000000000000 RCX: ffff88810d30bb40
[   23.727272][   T24] audit: type=1400 audit(1736067059.480:75): avc:  denied  { mounton } for  pid=291 comm="syz-executor170" path="/dev/gadgetfs" dev="devtmpfs" ino=509 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   23.730971][  T291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.761450][  T291] RBP: ffffc90000b57c10 R08: ffffffff81b79114 R09: 0000000000000003
[   23.769307][  T291] R10: fffff5200016af6c R11: dffffc0000000001 R12: dffffc0000000000
[   23.777141][  T291] R13: 1ffff11023360ee1 R14: ffff888119b076c0 R15: ffff888119b07708
[   23.785012][  T291] FS:  0000555563047480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   23.793752][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.800168][  T291] CR2: 0000555563058838 CR3: 000000011a512000 CR4: 00000000003506a0
[   23.808011][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.815766][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.823611][  T291] Call Trace:
[   23.826672][  T291]  ? show_regs+0x58/0x60
[   23.830785][  T291]  ? __warn+0x160/0x2f0
[   23.834745][  T291]  ? drop_nlink+0xc1/0x110
[   23.839047][  T291]  ? report_bug+0x3d9/0x5b0
[   23.843342][  T291]  ? drop_nlink+0xc1/0x110
[   23.847626][  T291]  ? handle_bug+0x41/0x70
[   23.851754][  T291]  ? exc_invalid_op+0x1b/0x50
[   23.856258][  T291]  ? asm_exc_invalid_op+0x12/0x20
[   23.861264][  T291]  ? drop_nlink+0x44/0x110
[   23.865466][  T291]  ? drop_nlink+0xc1/0x110
[   23.869781][  T291]  ? drop_nlink+0xc1/0x110
[   23.873944][  T291]  ? drop_nlink+0xc1/0x110
[   23.878235][  T291]  shmem_rmdir+0x59/0x90
[   23.882319][  T291]  vfs_rmdir+0x2b7/0x3f0
[   23.886359][  T291]  incfs_kill_sb+0x108/0x220
[   23.890819][  T291]  deactivate_locked_super+0xad/0x110
[   23.895990][  T291]  deactivate_super+0xbe/0xf0
[   23.900533][  T291]  cleanup_mnt+0x45c/0x510
[   23.904757][  T291]  __cleanup_mnt+0x19/0x20
[   23.909036][  T291]  task_work_run+0x129/0x190
[   23.913435][  T291]  ptrace_notify+0x29e/0x350
[   23.917884][  T291]  ? do_notify_parent+0xa10/0xa10
[   23.922721][  T291]  ? user_path_at_empty+0x40/0x50
[   23.927608][  T291]  ? __x64_sys_umount+0x122/0x170
[   23.932442][  T291]  ? path_umount+0xea0/0xea0
[   23.936871][  T291]  syscall_exit_to_user_mode+0xf5/0x1a0
[   23.942294][  T291]  do_syscall_64+0x40/0x70
[   23.946503][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   23.952259][  T291] RIP: 0033:0x7fb1cfa0c147
[   23.956483][  T291] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   23.975964][  T291] RSP: 002b:00007fff0bc21258 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   23.984188][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb1cfa0c147
[   23.992000][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff0bc21310
[   23.999830][  T291] RBP: 00007fff0bc21310 R08: 0000000000000000 R09: 0000000000000000
[   24.007631][  T291] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff0bc22380
[   24.015416][  T291] R13: 00005555630487c0 R14: 431bde82d7b634db R15: 00007fff0bc223a0
[   24.023257][  T291] ---[ end trace a2ce4425a8aad296 ]---
[   24.028658][  T291] ==================================================================
[   24.036510][  T291] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   24.042583][  T291] Write of size 4 at addr 0000000000000170 by task syz-executor170/291
[   24.050648][  T291] 
[   24.052826][  T291] CPU: 1 PID: 291 Comm: syz-executor170 Tainted: G        W         5.10.232-syzkaller-00746-g49e8ba0a684f #0
[   24.064278][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.074177][  T291] Call Trace:
[   24.077303][  T291]  dump_stack_lvl+0x1e2/0x24b
[   24.081815][  T291]  ? panic+0x812/0x812
[   24.085719][  T291]  ? bfq_pos_tree_add_move+0x43b/0x43b
[   24.091046][  T291]  ? _raw_spin_lock+0xa4/0x1b0
[   24.095611][  T291]  ? _raw_spin_trylock_bh+0x190/0x190
[   24.100825][  T291]  kasan_report+0x167/0x1c0
[   24.105158][  T291]  ? ihold+0x20/0x60
[   24.108892][  T291]  ? ihold+0x20/0x60
[   24.112622][  T291]  kasan_check_range+0x293/0x2a0
[   24.117400][  T291]  __kasan_check_write+0x14/0x20
[   24.122169][  T291]  ihold+0x20/0x60
[   24.125738][  T291]  vfs_rmdir+0x200/0x3f0
[   24.129809][  T291]  incfs_kill_sb+0x108/0x220
[   24.134237][  T291]  deactivate_locked_super+0xad/0x110
[   24.139444][  T291]  deactivate_super+0xbe/0xf0
[   24.143957][  T291]  cleanup_mnt+0x45c/0x510
[   24.148212][  T291]  __cleanup_mnt+0x19/0x20
[   24.152464][  T291]  task_work_run+0x129/0x190
[   24.156888][  T291]  ptrace_notify+0x29e/0x350
[   24.161326][  T291]  ? do_notify_parent+0xa10/0xa10
[   24.166174][  T291]  ? user_path_at_empty+0x40/0x50
[   24.171042][  T291]  ? __x64_sys_umount+0x122/0x170
[   24.175899][  T291]  ? path_umount+0xea0/0xea0
[   24.180331][  T291]  syscall_exit_to_user_mode+0xf5/0x1a0
[   24.185706][  T291]  do_syscall_64+0x40/0x70
[   24.189959][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.195689][  T291] RIP: 0033:0x7fb1cfa0c147
[   24.199951][  T291] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   24.219381][  T291] RSP: 002b:00007fff0bc21258 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   24.227627][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb1cfa0c147
[   24.235439][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff0bc21310
[   24.243255][  T291] RBP: 00007fff0bc21310 R08: 0000000000000000 R09: 0000000000000000
[   24.251061][  T291] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff0bc22380
[   24.258872][  T291] R13: 00005555630487c0 R14: 431bde82d7b634db R15: 00007fff0bc223a0
[   24.266684][  T291] ==================================================================
[   24.274581][  T291] Disabling lock debugging due to kernel taint
[   24.280668][  T291] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   24.288213][  T291] #PF: supervisor write access in kernel mode
[   24.294106][  T291] #PF: error_code(0x0002) - not-present page
[   24.299926][  T291] PGD 0 P4D 0 
[   24.303137][  T291] Oops: 0002 [#1] PREEMPT SMP KASAN
[   24.308177][  T291] CPU: 0 PID: 291 Comm: syz-executor170 Tainted: G    B   W         5.10.232-syzkaller-00746-g49e8ba0a684f #0
[   24.319628][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.329529][  T291] RIP: 0010:ihold+0x25/0x60
[   24.333863][  T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 01 25 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 60 c3 f0 ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 84 28 b3
[   24.353306][  T291] RSP: 0018:ffffc90000b57c28 EFLAGS: 00010246
[   24.359205][  T291] RAX: ffff88810d30bb00 RBX: 0000000000000001 RCX: ffff88810d30bb40
[   24.367017][  T291] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   24.374827][  T291] RBP: ffffc90000b57c38 R08: ffffffff813e2b7b R09: 0000000000000003
[   24.382647][  T291] R10: fffffbfff0e11248 R11: dffffc0000000001 R12: dffffc0000000000
[   24.390450][  T291] R13: ffff8881208d5dd0 R14: 0000000000000000 R15: 0000000000000000
[   24.398263][  T291] FS:  0000555563047480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.407030][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.413449][  T291] CR2: 0000000000000170 CR3: 000000011a512000 CR4: 00000000003506b0
[   24.421268][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.429074][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.436884][  T291] Call Trace:
[   24.440017][  T291]  ? __die_body+0x62/0xb0
[   24.444177][  T291]  ? __die+0x7e/0x90
[   24.447915][  T291]  ? no_context+0x9f9/0xd20
[   24.452252][  T291]  ? is_prefetch+0x5c0/0x5c0
[   24.456694][  T291]  ? preempt_schedule+0xd9/0xe0
[   24.461366][  T291]  ? __kasan_check_read+0x11/0x20
[   24.466222][  T291]  ? preempt_schedule_common+0xbe/0xf0
[   24.471519][  T291]  ? preempt_schedule+0xd9/0xe0
[   24.476205][  T291]  ? schedule_preempt_disabled+0x20/0x20
[   24.481678][  T291]  ? sysvec_apic_timer_interrupt+0xcb/0xe0
[   24.487315][  T291]  ? __bad_area_nosemaphore+0xc4/0x430
[   24.492609][  T291]  ? bad_area_nosemaphore+0x2d/0x40
[   24.497654][  T291]  ? exc_page_fault+0x3df/0x5b0
[   24.502331][  T291]  ? asm_exc_page_fault+0x1e/0x30
[   24.507190][  T291]  ? check_panic_on_warn+0x5b/0xb0
[   24.512167][  T291]  ? ihold+0x25/0x60
[   24.515878][  T291]  ? ihold+0x20/0x60
[   24.519610][  T291]  vfs_rmdir+0x200/0x3f0
[   24.523694][  T291]  incfs_kill_sb+0x108/0x220
[   24.528115][  T291]  deactivate_locked_super+0xad/0x110
[   24.533324][  T291]  deactivate_super+0xbe/0xf0
[   24.537833][  T291]  cleanup_mnt+0x45c/0x510
[   24.542083][  T291]  __cleanup_mnt+0x19/0x20
[   24.546336][  T291]  task_work_run+0x129/0x190
[   24.550764][  T291]  ptrace_notify+0x29e/0x350
[   24.555188][  T291]  ? do_notify_parent+0xa10/0xa10
[   24.560049][  T291]  ? user_path_at_empty+0x40/0x50
[   24.564915][  T291]  ? __x64_sys_umount+0x122/0x170
[   24.569770][  T291]  ? path_umount+0xea0/0xea0
[   24.574198][  T291]  syscall_exit_to_user_mode+0xf5/0x1a0
[   24.579581][  T291]  do_syscall_64+0x40/0x70
[   24.583831][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.589563][  T291] RIP: 0033:0x7fb1cfa0c147
[   24.593812][  T291] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   24.613253][  T291] RSP: 002b:00007fff0bc21258 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   24.621495][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb1cfa0c147
[   24.629307][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff0bc21310
[   24.637121][  T291] RBP: 00007fff0bc21310 R08: 0000000000000000 R09: 0000000000000000
[   24.644931][  T291] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff0bc22380
[   24.652743][  T291] R13: 00005555630487c0 R14: 431bde82d7b634db R15: 00007fff0bc223a0
[   24.660564][  T291] Modules linked in:
[   24.664299][  T291] CR2: 0000000000000170
[   24.668287][  T291] ---[ end trace a2ce4425a8aad297 ]---
[   24.673585][  T291] RIP: 0010:ihold+0x25/0x60
[   24.677926][  T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 01 25 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 60 c3 f0 ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 84 28 b3
[   24.697356][  T291] RSP: 0018:ffffc90000b57c28 EFLAGS: 00010246
[   24.703258][  T291] RAX: ffff88810d30bb00 RBX: 0000000000000001 RCX: ffff88810d30bb40
[   24.711072][  T291] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   24.718890][  T291] RBP: ffffc90000b57c38 R08: ffffffff813e2b7b R09: 0000000000000003
[   24.726694][  T291] R10: fffffbfff0e11248 R11: dffffc0000000001 R12: dffffc0000000000
[   24.734503][  T291] R13: ffff8881208d5dd0 R14: 0000000000000000 R15: 0000000000000000
[   24.742320][  T291] FS:  0000555563047480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.751080][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.757512][  T291] CR2: 0000000000000170 CR3: 000000011a512000 CR4: 00000000003506b0
[   24.765319][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.773130][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.780937][  T291] Kernel panic - not syncing: Fatal exception
[   24.787024][  T291] Kernel Offset: disabled
[   24.791145][  T291] Rebooting in 86400 seconds..