./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1719567163

<...>
Warning: Permanently added '10.128.1.236' (ED25519) to the list of known hosts.
execve("./syz-executor1719567163", ["./syz-executor1719567163"], 0x7ffcfb835410 /* 10 vars */) = 0
brk(NULL)                               = 0x55557beb6000
brk(0x55557beb6e00)                     = 0x55557beb6e00
arch_prctl(ARCH_SET_FS, 0x55557beb6480) = 0
set_tid_address(0x55557beb6750)         = 290
set_robust_list(0x55557beb6760, 24)     = 0
rseq(0x55557beb6da0, 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-executor1719567163", 4096) = 28
getrandom("\xdb\xf8\x8a\xfe\x40\xb0\xfb\xa1", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557beb6e00
brk(0x55557bed7e00)                     = 0x55557bed7e00
brk(0x55557bed8000)                     = 0x55557bed8000
mprotect(0x7f6afff5e000, 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=0x7f6affeb4df0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f6affebcb20}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f6affeb4df0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f6affebcb20}, NULL, 8) = 0
mkdir("./syzkaller.KNdj7D", 0700)       = 0
chmod("./syzkaller.KNdj7D", 0777)       = 0
chdir("./syzkaller.KNdj7D")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557beb6750) = 291
./strace-static-x86_64: Process 291 attached
[pid   291] set_robust_list(0x55557beb6760, 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
[   25.258586][   T28] audit: type=1400 audit(1753141912.981:64): avc:  denied  { execmem } for  pid=290 comm="syz-executor171" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   25.279990][   T28] audit: type=1400 audit(1753141913.001:65): avc:  denied  { mounton } for  pid=291 comm="syz-executor171" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[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/newroot/syz-inputs", 0700) = 0
[pid   291] 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   291] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   291] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   291] chdir("/")                  = 0
[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
[   25.303597][   T28] audit: type=1400 audit(1753141913.021:66): avc:  denied  { mounton } for  pid=291 comm="syz-executor171" path="/root/syzkaller.KNdj7D/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   25.328196][   T28] audit: type=1400 audit(1753141913.031:67): avc:  denied  { mount } for  pid=291 comm="syz-executor171" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   25.331402][  T291] request_module fs-gadgetfs succeeded, but still no fs?
[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=0x55557beb6750) = 2
./strace-static-x86_64: Process 292 attached
[pid   292] set_robust_list(0x55557beb6760, 24) = 0
[pid   292] chdir("./0")                = 0
[pid   292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   292] setpgid(0, 0)               = 0
[pid   292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   292] write(3, "1000", 4)         = 4
[pid   292] close(3)                    = 0
[pid   292] symlink("/dev/binderfs", "./binderfs") = 0
[pid   292] write(1, "executing program\n", 18executing program
) = 18
[pid   292] mkdir("./file0", 0777)      = 0
[pid   292] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   292] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   292] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   292] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   292] exit_group(0)               = ?
[pid   292] +++ 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} ---
[   25.350621][   T28] audit: type=1400 audit(1753141913.031:68): avc:  denied  { mounton } for  pid=291 comm="syz-executor171" path="/root/syzkaller.KNdj7D/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
[   25.370818][  T292] incfs: ino conflict with backing FS 9
[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, 0x55557beb77f0 /* 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, 0x55557bebf830 /* 2 entries */, 32768) = 48
[pid   291] getdents64(4, 0x55557bebf830 /* 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, 0x55557bebf830 /* 2 entries */, 32768) = 48
[pid   291] getdents64(4, 0x55557bebf830 /* 0 entries */, 32768) = 0
[pid   291] close(4)                    = 0
[pid   291] rmdir("./0/.index")         = 0
[   25.400121][   T28] audit: type=1400 audit(1753141913.031:69): avc:  denied  { mount } for  pid=291 comm="syz-executor171" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   25.422477][   T28] audit: type=1400 audit(1753141913.031:70): avc:  denied  { mounton } for  pid=291 comm="syz-executor171" path="/root/syzkaller.KNdj7D/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
[   25.422931][  T291] ------------[ cut here ]------------
[   25.449502][   T28] audit: type=1400 audit(1753141913.031:71): avc:  denied  { mounton } for  pid=291 comm="syz-executor171" path="/root/syzkaller.KNdj7D/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14582 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   25.454884][  T291] WARNING: CPU: 1 PID: 291 at fs/inode.c:332 drop_nlink+0xc5/0x110
[   25.482544][   T28] audit: type=1400 audit(1753141913.041:72): avc:  denied  { unmount } for  pid=291 comm="syz-executor171" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   25.490506][  T291] Modules linked in:
[   25.510257][   T28] audit: type=1400 audit(1753141913.051:73): avc:  denied  { mounton } for  pid=291 comm="syz-executor171" path="/dev/gadgetfs" dev="devtmpfs" ino=570 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   25.514130][  T291] CPU: 1 PID: 291 Comm: syz-executor171 Not tainted 6.1.141-syzkaller-00040-g2dbfabb0eec8 #0
[   25.547322][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   25.557420][  T291] RIP: 0010:drop_nlink+0xc5/0x110
[   25.562476][  T291] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 d3 eb f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 4b 8f ac ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   25.582116][  T291] RSP: 0018:ffffc90000de7b38 EFLAGS: 00010293
[   25.588232][  T291] RAX: ffffffff81c36825 RBX: ffff888107eab938 RCX: ffff888105f21440
[   25.596243][  T291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.604242][  T291] RBP: ffffc90000de7b60 R08: 0000000000000004 R09: 0000000000000003
[   25.612229][  T291] R10: fffff520001bcf58 R11: 1ffff920001bcf58 R12: dffffc0000000000
[   25.620336][  T291] R13: 1ffff11020fd5730 R14: ffff888107eab980 R15: 0000000000000000
[   25.628346][  T291] FS:  000055557beb6480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   25.637309][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.643917][  T291] CR2: 000055557bec7838 CR3: 0000000107292000 CR4: 00000000003506a0
[   25.651892][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.659898][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.667917][  T291] Call Trace:
[   25.671201][  T291]  <TASK>
[   25.674154][  T291]  shmem_rmdir+0x5b/0x90
[   25.678418][  T291]  vfs_rmdir+0x393/0x500
[   25.682662][  T291]  incfs_kill_sb+0x105/0x220
[   25.687285][  T291]  deactivate_locked_super+0xb5/0x120
[   25.692678][  T291]  deactivate_super+0xaf/0xe0
[   25.697397][  T291]  cleanup_mnt+0x45f/0x4e0
[   25.701837][  T291]  ? umount_tree+0xe10/0xe10
[   25.706460][  T291]  __cleanup_mnt+0x19/0x20
[   25.710909][  T291]  task_work_run+0x1db/0x240
[   25.715524][  T291]  ? __cfi_task_work_run+0x10/0x10
[   25.720653][  T291]  ? path_umount+0x351/0xf50
[   25.725269][  T291]  ? __kasan_slab_free+0x11/0x20
[   25.730310][  T291]  ptrace_notify+0x221/0x250
[   25.734950][  T291]  ? __cfi_path_umount+0x10/0x10
[   25.739905][  T291]  ? __cfi_ptrace_notify+0x10/0x10
[   25.745051][  T291]  ? user_path_at_empty+0x161/0x1c0
[   25.750272][  T291]  ? __x64_sys_umount+0x125/0x160
[   25.755335][  T291]  ? __cfi___x64_sys_umount+0x10/0x10
[   25.760728][  T291]  ? fpregs_restore_userregs+0x128/0x260
[   25.766396][  T291]  syscall_exit_work+0x84/0x140
[   25.771274][  T291]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.777458][  T291]  syscall_exit_to_user_mode+0xd/0x30
[   25.782845][  T291]  do_syscall_64+0x58/0xa0
[   25.787305][  T291]  ? clear_bhb_loop+0x30/0x80
[   25.792117][  T291]  ? clear_bhb_loop+0x30/0x80
[   25.796824][  T291]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   25.802816][  T291] RIP: 0033:0x7f6affeeb207
[   25.807304][  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
[   25.826965][  T291] RSP: 002b:00007fff7266a618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   25.835408][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6affeeb207
[   25.843391][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff7266a6d0
[   25.851417][  T291] RBP: 00007fff7266a6d0 R08: 0000000000000000 R09: 0000000000000000
[   25.859419][  T291] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff7266b740
[   25.867413][  T291] R13: 000055557beb77c0 R14: 431bde82d7b634db R15: 00007fff7266b760
[   25.875414][  T291]  </TASK>
[   25.878429][  T291] ---[ end trace 0000000000000000 ]---
[   25.884011][  T291] ==================================================================
[   25.892084][  T291] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   25.898338][  T291] Write of size 4 at addr 0000000000000170 by task syz-executor171/291
[   25.906610][  T291] 
[   25.908941][  T291] CPU: 1 PID: 291 Comm: syz-executor171 Tainted: G        W          6.1.141-syzkaller-00040-g2dbfabb0eec8 #0
[   25.920557][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   25.930616][  T291] Call Trace:
[   25.933893][  T291]  <TASK>
[   25.936821][  T291]  __dump_stack+0x21/0x24
[   25.941157][  T291]  dump_stack_lvl+0xee/0x150
[   25.945746][  T291]  ? __cfi_dump_stack_lvl+0x8/0x8
[   25.950776][  T291]  ? ihold+0x20/0x60
[   25.954666][  T291]  ? ihold+0x20/0x60
[   25.958561][  T291]  print_report+0x3d/0x60
[   25.962919][  T291]  kasan_report+0x122/0x150
[   25.967474][  T291]  ? ihold+0x20/0x60
[   25.971370][  T291]  kasan_check_range+0x280/0x290
[   25.976306][  T291]  __kasan_check_write+0x14/0x20
[   25.981245][  T291]  ihold+0x20/0x60
[   25.984958][  T291]  vfs_rmdir+0x25f/0x500
[   25.989198][  T291]  incfs_kill_sb+0x105/0x220
[   25.993791][  T291]  deactivate_locked_super+0xb5/0x120
[   25.999185][  T291]  deactivate_super+0xaf/0xe0
[   26.003857][  T291]  cleanup_mnt+0x45f/0x4e0
[   26.008359][  T291]  ? umount_tree+0xe10/0xe10
[   26.012963][  T291]  __cleanup_mnt+0x19/0x20
[   26.017377][  T291]  task_work_run+0x1db/0x240
[   26.021965][  T291]  ? __cfi_task_work_run+0x10/0x10
[   26.027120][  T291]  ? path_umount+0x351/0xf50
[   26.031707][  T291]  ? __kasan_slab_free+0x11/0x20
[   26.036646][  T291]  ptrace_notify+0x221/0x250
[   26.041236][  T291]  ? __cfi_path_umount+0x10/0x10
[   26.046172][  T291]  ? __cfi_ptrace_notify+0x10/0x10
[   26.051286][  T291]  ? user_path_at_empty+0x161/0x1c0
[   26.056481][  T291]  ? __x64_sys_umount+0x125/0x160
[   26.061502][  T291]  ? __cfi___x64_sys_umount+0x10/0x10
[   26.066876][  T291]  ? fpregs_restore_userregs+0x128/0x260
[   26.072518][  T291]  syscall_exit_work+0x84/0x140
[   26.077367][  T291]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   26.083520][  T291]  syscall_exit_to_user_mode+0xd/0x30
[   26.088918][  T291]  do_syscall_64+0x58/0xa0
[   26.093324][  T291]  ? clear_bhb_loop+0x30/0x80
[   26.097995][  T291]  ? clear_bhb_loop+0x30/0x80
[   26.102669][  T291]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.108553][  T291] RIP: 0033:0x7f6affeeb207
[   26.113221][  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
[   26.132820][  T291] RSP: 002b:00007fff7266a618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   26.141227][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6affeeb207
[   26.149193][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff7266a6d0
[   26.157174][  T291] RBP: 00007fff7266a6d0 R08: 0000000000000000 R09: 0000000000000000
[   26.165149][  T291] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff7266b740
[   26.173124][  T291] R13: 000055557beb77c0 R14: 431bde82d7b634db R15: 00007fff7266b760
[   26.181104][  T291]  </TASK>
[   26.184130][  T291] ==================================================================
[   26.192269][  T291] Disabling lock debugging due to kernel taint
[   26.198579][  T291] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   26.206376][  T291] #PF: supervisor write access in kernel mode
[   26.212429][  T291] #PF: error_code(0x0002) - not-present page
[   26.218484][  T291] PGD 0 P4D 0 
[   26.221862][  T291] Oops: 0002 [#1] PREEMPT SMP KASAN
[   26.227057][  T291] CPU: 1 PID: 291 Comm: syz-executor171 Tainted: G    B   W          6.1.141-syzkaller-00040-g2dbfabb0eec8 #0
[   26.238685][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   26.248736][  T291] RIP: 0010:ihold+0x26/0x60
[   26.253239][  T291] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 b1 86 ac ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 10 e3 f0 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 a1
[   26.272858][  T291] RSP: 0018:ffffc90000de7b78 EFLAGS: 00010246
[   26.278932][  T291] RAX: ffff888105f21400 RBX: 0000000000000000 RCX: ffff888105f21440
[   26.286907][  T291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.294870][  T291] RBP: ffffc90000de7b88 R08: dffffc0000000000 R09: fffffbfff0f2ccfd
[   26.302841][  T291] R10: fffffbfff0f2ccfd R11: 1ffffffff0f2ccfc R12: ffff888107eab944
[   26.310806][  T291] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   26.318771][  T291] FS:  000055557beb6480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   26.327701][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.334278][  T291] CR2: 0000000000000170 CR3: 0000000107292000 CR4: 00000000003506a0
[   26.342245][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.350210][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.358174][  T291] Call Trace:
[   26.361443][  T291]  <TASK>
[   26.364365][  T291]  vfs_rmdir+0x25f/0x500
[   26.368603][  T291]  incfs_kill_sb+0x105/0x220
[   26.373187][  T291]  deactivate_locked_super+0xb5/0x120
[   26.378555][  T291]  deactivate_super+0xaf/0xe0
[   26.383229][  T291]  cleanup_mnt+0x45f/0x4e0
[   26.387642][  T291]  ? umount_tree+0xe10/0xe10
[   26.392226][  T291]  __cleanup_mnt+0x19/0x20
[   26.396639][  T291]  task_work_run+0x1db/0x240
[   26.401225][  T291]  ? __cfi_task_work_run+0x10/0x10
[   26.406328][  T291]  ? path_umount+0x351/0xf50
[   26.410909][  T291]  ? __kasan_slab_free+0x11/0x20
[   26.415841][  T291]  ptrace_notify+0x221/0x250
[   26.420429][  T291]  ? __cfi_path_umount+0x10/0x10
[   26.425360][  T291]  ? __cfi_ptrace_notify+0x10/0x10
[   26.430555][  T291]  ? user_path_at_empty+0x161/0x1c0
[   26.435856][  T291]  ? __x64_sys_umount+0x125/0x160
[   26.440874][  T291]  ? __cfi___x64_sys_umount+0x10/0x10
[   26.446241][  T291]  ? fpregs_restore_userregs+0x128/0x260
[   26.451866][  T291]  syscall_exit_work+0x84/0x140
[   26.456721][  T291]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   26.462872][  T291]  syscall_exit_to_user_mode+0xd/0x30
[   26.468239][  T291]  do_syscall_64+0x58/0xa0
[   26.472647][  T291]  ? clear_bhb_loop+0x30/0x80
[   26.477403][  T291]  ? clear_bhb_loop+0x30/0x80
[   26.482077][  T291]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.487962][  T291] RIP: 0033:0x7f6affeeb207
[   26.492384][  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
[   26.512009][  T291] RSP: 002b:00007fff7266a618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   26.520429][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6affeeb207
[   26.528398][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff7266a6d0
[   26.536365][  T291] RBP: 00007fff7266a6d0 R08: 0000000000000000 R09: 0000000000000000
[   26.544332][  T291] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff7266b740
[   26.552298][  T291] R13: 000055557beb77c0 R14: 431bde82d7b634db R15: 00007fff7266b760
[   26.560357][  T291]  </TASK>
[   26.563372][  T291] Modules linked in:
[   26.567353][  T291] CR2: 0000000000000170
[   26.571497][  T291] ---[ end trace 0000000000000000 ]---
[   26.576948][  T291] RIP: 0010:ihold+0x26/0x60
[   26.581468][  T291] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 b1 86 ac ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 10 e3 f0 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 a1
[   26.601076][  T291] RSP: 0018:ffffc90000de7b78 EFLAGS: 00010246
[   26.607229][  T291] RAX: ffff888105f21400 RBX: 0000000000000000 RCX: ffff888105f21440
[   26.615193][  T291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.623162][  T291] RBP: ffffc90000de7b88 R08: dffffc0000000000 R09: fffffbfff0f2ccfd
[   26.631126][  T291] R10: fffffbfff0f2ccfd R11: 1ffffffff0f2ccfc R12: ffff888107eab944
[   26.639089][  T291] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   26.647058][  T291] FS:  000055557beb6480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   26.655978][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.662559][  T291] CR2: 0000000000000170 CR3: 0000000107292000 CR4: 00000000003506a0
[   26.670610][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.678574][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.686542][  T291] Kernel panic - not syncing: Fatal exception
[   26.692905][  T291] Kernel Offset: disabled
[   26.697226][  T291] Rebooting in 86400 seconds..