./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1189953040

<...>
Warning: Permanently added '10.128.1.181' (ED25519) to the list of known hosts.
execve("./syz-executor1189953040", ["./syz-executor1189953040"], 0x7ffd87b49f60 /* 10 vars */) = 0
brk(NULL)                               = 0x555556ba7000
brk(0x555556ba7d00)                     = 0x555556ba7d00
arch_prctl(ARCH_SET_FS, 0x555556ba7380) = 0
set_tid_address(0x555556ba7650)         = 297
set_robust_list(0x555556ba7660, 24)     = 0
rseq(0x555556ba7ca0, 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-executor1189953040", 4096) = 28
getrandom("\x8e\x69\xc6\x4b\x02\xa7\x97\xa2", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555556ba7d00
brk(0x555556bc8d00)                     = 0x555556bc8d00
brk(0x555556bc9000)                     = 0x555556bc9000
mprotect(0x7f59edbd0000, 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
mkdir("./syzkaller.yFQdWM", 0700)       = 0
chmod("./syzkaller.yFQdWM", 0777)       = 0
chdir("./syzkaller.yFQdWM")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba7650) = 298
./strace-static-x86_64: Process 298 attached
[pid   298] set_robust_list(0x555556ba7660, 24) = 0
[pid   298] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   298] setsid()                    = 1
[pid   298] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   298] unshare(CLONE_NEWNS)        = 0
[pid   298] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   298] unshare(CLONE_NEWCGROUP)    = 0
[pid   298] unshare(CLONE_NEWUTS)       = 0
[pid   298] unshare(CLONE_SYSVSEM)      = 0
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] getpid()                    = 1
[pid   298] 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   298] 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   298] unshare(CLONE_NEWNET)       = 0
[pid   298] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   298] write(3, "0 65535", 7)      = 7
[pid   298] close(3)                    = 0
[pid   298] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   298] write(3, "100000", 6)       = 6
[pid   298] close(3)                    = 0
[pid   298] mkdir("./syz-tmp", 0777)    = 0
[pid   298] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   298] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   298] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   298] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   298] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   298] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[   26.705089][   T30] audit: type=1400 audit(1722406197.776:66): avc:  denied  { execmem } for  pid=297 comm="syz-executor118" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   26.725103][   T30] audit: type=1400 audit(1722406197.786:67): avc:  denied  { mounton } for  pid=298 comm="syz-executor118" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1
[pid   298] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   298] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   298] chdir("/")                  = 0
[pid   298] umount2("./pivot", MNT_DETACH) = 0
[pid   298] chroot("./newroot")         = 0
[pid   298] chdir("/")                  = 0
[pid   298] mkdir("/dev/binderfs", 0777) = 0
[pid   298] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   298] mkdir("./0", 0777)          = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba7650) = 2
./strace-static-x86_64: Process 299 attached
[pid   299] set_robust_list(0x555556ba7660, 24) = 0
[pid   299] chdir("./0")                = 0
[pid   299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   299] setpgid(0, 0)               = 0
[pid   299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   299] write(3, "1000", 4)         = 4
[pid   299] close(3)                    = 0
[pid   299] symlink("/dev/binderfs", "./binderfs") = 0
[pid   299] write(1, "executing program\n", 18executing program
) = 18
[pid   299] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   299] mount(".", "./file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   299] mount("./file0", "./file0", "incremental-fs", MS_RDONLY, NULL) = 0
[pid   299] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(21)                   = -1 EBADF (Bad file descriptor)
[   26.749140][   T30] audit: type=1400 audit(1722406197.786:68): avc:  denied  { mount } for  pid=298 comm="syz-executor118" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[   26.771457][   T30] audit: type=1400 audit(1722406197.796:69): avc:  denied  { mounton } for  pid=298 comm="syz-executor118" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   26.784230][  T299] incfs: ino conflict with backing FS 8
[pid   299] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   299] exit_group(0)               = ?
[pid   299] +++ exited with 0 +++
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   298] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   298] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   298] getdents64(3, 0x555556ba86f0 /* 6 entries */, 32768) = 176
[pid   298] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   298] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   298] getdents64(4, 0x555556bb0730 /* 2 entries */, 32768) = 48
[pid   298] getdents64(4, 0x555556bb0730 /* 0 entries */, 32768) = 0
[pid   298] close(4)                    = 0
[pid   298] rmdir("./0/.incomplete")    = 0
[pid   298] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   298] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   298] getdents64(4, 0x555556bb0730 /* 2 entries */, 32768) = 48
[pid   298] getdents64(4, 0x555556bb0730 /* 0 entries */, 32768) = 0
[pid   298] close(4)                    = 0
[pid   298] rmdir("./0/.index")         = 0
[   26.793111][   T30] audit: type=1400 audit(1722406197.826:70): avc:  denied  { mounton } for  pid=298 comm="syz-executor118" path="/root/syzkaller.yFQdWM/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   26.822637][   T30] audit: type=1400 audit(1722406197.826:71): avc:  denied  { mount } for  pid=298 comm="syz-executor118" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   26.844633][   T30] audit: type=1400 audit(1722406197.826:72): avc:  denied  { mounton } for  pid=298 comm="syz-executor118" path="/root/syzkaller.yFQdWM/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
[   26.844833][  T298] ------------[ cut here ]------------
[   26.869724][   T30] audit: type=1400 audit(1722406197.826:73): avc:  denied  { mount } for  pid=298 comm="syz-executor118" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   26.875254][  T298] WARNING: CPU: 1 PID: 298 at fs/inode.c:307 drop_nlink+0xc1/0x110
[   26.896661][   T30] audit: type=1400 audit(1722406197.826:74): avc:  denied  { unmount } for  pid=298 comm="syz-executor118" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   26.896690][   T30] audit: type=1400 audit(1722406197.846:75): avc:  denied  { mounton } for  pid=298 comm="syz-executor118" path="/dev/binderfs" dev="devtmpfs" ino=362 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   26.947068][  T298] Modules linked in:
[   26.950869][  T298] CPU: 1 PID: 298 Comm: syz-executor118 Not tainted 5.15.151-syzkaller-00134-gd0a6506ecafd #0
[   26.960898][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[   26.971581][  T298] RIP: 0010:drop_nlink+0xc1/0x110
[   26.976408][  T298] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 c7 f8 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7f bc ae ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   26.996055][  T298] RSP: 0018:ffffc900009c7bc8 EFLAGS: 00010293
[   27.001911][  T298] RAX: ffffffff81c185f1 RBX: 0000000000000000 RCX: ffff888117e2a780
[   27.009776][  T298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   27.017606][  T298] RBP: ffffc900009c7bf0 R08: ffffffff81c18574 R09: 0000000000000003
[   27.025440][  T298] R10: fffff52000138f68 R11: dffffc0000000001 R12: dffffc0000000000
[   27.033238][  T298] R13: 1ffff1102456f10c R14: ffff888122b78818 R15: ffff888122b78860
[   27.041138][  T298] FS:  0000555556ba7380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   27.049810][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.056210][  T298] CR2: 000055e86e5e5308 CR3: 0000000122adc000 CR4: 00000000003506a0
[   27.064268][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.072071][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.079882][  T298] Call Trace:
[   27.082990][  T298]  <TASK>
[   27.085766][  T298]  ? show_regs+0x58/0x60
[   27.089902][  T298]  ? __warn+0x160/0x2f0
[   27.094065][  T298]  ? drop_nlink+0xc1/0x110
[   27.098284][  T298]  ? report_bug+0x3d9/0x5b0
[   27.102757][  T298]  ? drop_nlink+0xc1/0x110
[   27.106964][  T298]  ? handle_bug+0x41/0x70
[   27.111734][  T298]  ? exc_invalid_op+0x1b/0x50
[   27.116182][  T298]  ? asm_exc_invalid_op+0x1b/0x20
[   27.121203][  T298]  ? drop_nlink+0x44/0x110
[   27.125588][  T298]  ? drop_nlink+0xc1/0x110
[   27.129922][  T298]  ? drop_nlink+0xc1/0x110
[   27.134086][  T298]  ? drop_nlink+0xc1/0x110
[   27.138422][  T298]  shmem_rmdir+0x59/0x90
[   27.142558][  T298]  vfs_rmdir+0x324/0x470
[   27.146588][  T298]  incfs_kill_sb+0x113/0x230
[   27.151061][  T298]  deactivate_locked_super+0xad/0x110
[   27.156340][  T298]  deactivate_super+0xbe/0xf0
[   27.160881][  T298]  cleanup_mnt+0x45c/0x510
[   27.165107][  T298]  __cleanup_mnt+0x19/0x20
[   27.169357][  T298]  task_work_run+0x129/0x190
[   27.173814][  T298]  ptrace_notify+0x29e/0x350
[   27.178203][  T298]  ? do_notify_parent+0xa30/0xa30
[   27.183110][  T298]  ? user_path_at_empty+0x14e/0x1a0
[   27.188100][  T298]  ? __x64_sys_umount+0x122/0x170
[   27.192991][  T298]  ? path_umount+0xea0/0xea0
[   27.197382][  T298]  ? __kasan_check_read+0x11/0x20
[   27.202273][  T298]  syscall_exit_to_user_mode+0xac/0x160
[   27.207648][  T298]  do_syscall_64+0x49/0xb0
[   27.211914][  T298]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   27.217608][  T298] RIP: 0033:0x7f59edb5d9a7
[   27.221894][  T298] 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
[   27.241456][  T298] RSP: 002b:00007ffe986561a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   27.249718][  T298] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f59edb5d9a7
[   27.257467][  T298] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe98656260
[   27.265355][  T298] RBP: 00007ffe98656260 R08: 0000000000000000 R09: 0000000000000000
[   27.273108][  T298] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe986572d0
[   27.280921][  T298] R13: 0000555556ba86c0 R14: 00007ffe986572d0 R15: 0000000000000001
[   27.288712][  T298]  </TASK>
[   27.291606][  T298] ---[ end trace b5b72ab594ea760b ]---
[   27.296926][  T298] ==================================================================
[   27.304766][  T298] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   27.310841][  T298] Write of size 4 at addr 0000000000000170 by task syz-executor118/298
[   27.318909][  T298] 
[   27.321080][  T298] CPU: 1 PID: 298 Comm: syz-executor118 Tainted: G        W         5.15.151-syzkaller-00134-gd0a6506ecafd #0
[   27.332546][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[   27.342432][  T298] Call Trace:
[   27.345673][  T298]  <TASK>
[   27.348451][  T298]  dump_stack_lvl+0x151/0x1b7
[   27.352962][  T298]  ? io_uring_drop_tctx_refs+0x190/0x190
[   27.358428][  T298]  ? _raw_spin_lock+0xa4/0x1b0
[   27.363041][  T298]  ? _raw_spin_trylock_bh+0x190/0x190
[   27.368272][  T298]  kasan_report+0x16f/0x1c0
[   27.372578][  T298]  ? ihold+0x20/0x60
[   27.376323][  T298]  ? ihold+0x20/0x60
[   27.380049][  T298]  kasan_check_range+0x293/0x2a0
[   27.384818][  T298]  __kasan_check_write+0x14/0x20
[   27.389588][  T298]  ihold+0x20/0x60
[   27.393150][  T298]  vfs_rmdir+0x201/0x470
[   27.397234][  T298]  incfs_kill_sb+0x113/0x230
[   27.401654][  T298]  deactivate_locked_super+0xad/0x110
[   27.406975][  T298]  deactivate_super+0xbe/0xf0
[   27.411487][  T298]  cleanup_mnt+0x45c/0x510
[   27.415746][  T298]  __cleanup_mnt+0x19/0x20
[   27.419996][  T298]  task_work_run+0x129/0x190
[   27.424425][  T298]  ptrace_notify+0x29e/0x350
[   27.428846][  T298]  ? do_notify_parent+0xa30/0xa30
[   27.433704][  T298]  ? user_path_at_empty+0x14e/0x1a0
[   27.438748][  T298]  ? __x64_sys_umount+0x122/0x170
[   27.443618][  T298]  ? path_umount+0xea0/0xea0
[   27.448029][  T298]  ? __kasan_check_read+0x11/0x20
[   27.452889][  T298]  syscall_exit_to_user_mode+0xac/0x160
[   27.458269][  T298]  do_syscall_64+0x49/0xb0
[   27.462519][  T298]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   27.468250][  T298] RIP: 0033:0x7f59edb5d9a7
[   27.472701][  T298] 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
[   27.492145][  T298] RSP: 002b:00007ffe986561a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   27.500404][  T298] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f59edb5d9a7
[   27.508380][  T298] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe98656260
[   27.516355][  T298] RBP: 00007ffe98656260 R08: 0000000000000000 R09: 0000000000000000
[   27.524165][  T298] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe986572d0
[   27.532069][  T298] R13: 0000555556ba86c0 R14: 00007ffe986572d0 R15: 0000000000000001
[   27.539876][  T298]  </TASK>
[   27.542739][  T298] ==================================================================
[   27.550630][  T298] Disabling lock debugging due to kernel taint
[   27.556744][  T298] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   27.564530][  T298] #PF: supervisor write access in kernel mode
[   27.570556][  T298] #PF: error_code(0x0002) - not-present page
[   27.577065][  T298] PGD 0 P4D 0 
[   27.580268][  T298] Oops: 0002 [#1] PREEMPT SMP KASAN
[   27.585320][  T298] CPU: 1 PID: 298 Comm: syz-executor118 Tainted: G    B   W         5.15.151-syzkaller-00134-gd0a6506ecafd #0
[   27.596847][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[   27.606741][  T298] RIP: 0010:ihold+0x25/0x60
[   27.611168][  T298] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 91 b4 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 b0 f0 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 14 b8 ae
[   27.630619][  T298] RSP: 0018:ffffc900009c7c08 EFLAGS: 00010246
[   27.636514][  T298] RAX: ffff888117e2a700 RBX: 0000000000000001 RCX: ffff888117e2a780
[   27.644324][  T298] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   27.652253][  T298] RBP: ffffc900009c7c18 R08: ffffffff8141703b R09: 0000000000000003
[   27.660039][  T298] R10: fffffbfff0e98e4c R11: dffffc0000000001 R12: dffffc0000000000
[   27.667840][  T298] R13: ffff888118f54aa0 R14: 0000000000000000 R15: 1ffff110231ea95a
[   27.675652][  T298] FS:  0000555556ba7380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   27.684426][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.690839][  T298] CR2: 0000000000000170 CR3: 0000000122adc000 CR4: 00000000003506a0
[   27.698677][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.706475][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.714274][  T298] Call Trace:
[   27.717400][  T298]  <TASK>
[   27.720180][  T298]  ? __die_body+0x62/0xb0
[   27.724344][  T298]  ? __die+0x7e/0x90
[   27.728073][  T298]  ? page_fault_oops+0x7f9/0xa90
[   27.732850][  T298]  ? __kasan_check_write+0x14/0x20
[   27.737799][  T298]  ? kernelmode_fixup_or_oops+0x270/0x270
[   27.743351][  T298]  ? __schedule+0xcd4/0x1590
[   27.747780][  T298]  ? exc_page_fault+0x521/0x830
[   27.752469][  T298]  ? asm_exc_page_fault+0x27/0x30
[   27.757327][  T298]  ? check_panic_on_warn+0x5b/0xb0
[   27.762273][  T298]  ? ihold+0x25/0x60
[   27.766002][  T298]  ? ihold+0x20/0x60
[   27.769738][  T298]  vfs_rmdir+0x201/0x470
[   27.773820][  T298]  incfs_kill_sb+0x113/0x230
[   27.778242][  T298]  deactivate_locked_super+0xad/0x110
[   27.783802][  T298]  deactivate_super+0xbe/0xf0
[   27.788316][  T298]  cleanup_mnt+0x45c/0x510
[   27.792567][  T298]  __cleanup_mnt+0x19/0x20
[   27.796824][  T298]  task_work_run+0x129/0x190
[   27.801247][  T298]  ptrace_notify+0x29e/0x350
[   27.805682][  T298]  ? do_notify_parent+0xa30/0xa30
[   27.810662][  T298]  ? user_path_at_empty+0x14e/0x1a0
[   27.815692][  T298]  ? __x64_sys_umount+0x122/0x170
[   27.820683][  T298]  ? path_umount+0xea0/0xea0
[   27.825228][  T298]  ? __kasan_check_read+0x11/0x20
[   27.830068][  T298]  syscall_exit_to_user_mode+0xac/0x160
[   27.835450][  T298]  do_syscall_64+0x49/0xb0
[   27.839705][  T298]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   27.845427][  T298] RIP: 0033:0x7f59edb5d9a7
[   27.849680][  T298] 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
[   27.869438][  T298] RSP: 002b:00007ffe986561a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   27.877671][  T298] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f59edb5d9a7
[   27.885482][  T298] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe98656260
[   27.893295][  T298] RBP: 00007ffe98656260 R08: 0000000000000000 R09: 0000000000000000
[   27.901106][  T298] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe986572d0
[   27.908919][  T298] R13: 0000555556ba86c0 R14: 00007ffe986572d0 R15: 0000000000000001
[   27.916732][  T298]  </TASK>
[   27.919594][  T298] Modules linked in:
[   27.923392][  T298] CR2: 0000000000000170
[   27.927335][  T298] ---[ end trace b5b72ab594ea760c ]---
[   27.932795][  T298] RIP: 0010:ihold+0x25/0x60
[   27.937135][  T298] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 91 b4 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 b0 f0 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 14 b8 ae
[   27.957330][  T298] RSP: 0018:ffffc900009c7c08 EFLAGS: 00010246
[   27.963223][  T298] RAX: ffff888117e2a700 RBX: 0000000000000001 RCX: ffff888117e2a780
[   27.971041][  T298] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   27.978846][  T298] RBP: ffffc900009c7c18 R08: ffffffff8141703b R09: 0000000000000003
[   27.986836][  T298] R10: fffffbfff0e98e4c R11: dffffc0000000001 R12: dffffc0000000000
[   27.994642][  T298] R13: ffff888118f54aa0 R14: 0000000000000000 R15: 1ffff110231ea95a
[   28.002456][  T298] FS:  0000555556ba7380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   28.011223][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.017649][  T298] CR2: 0000000000000170 CR3: 0000000122adc000 CR4: 00000000003506a0
[   28.025460][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.033355][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.041176][  T298] Kernel panic - not syncing: Fatal exception
[   28.047466][  T298] Kernel Offset: disabled
[   28.053020][  T298] Rebooting in 86400 seconds..