./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2603697229

<...>
Warning: Permanently added '10.128.1.46' (ED25519) to the list of known hosts.
execve("./syz-executor2603697229", ["./syz-executor2603697229"], 0x7ffec8607b10 /* 10 vars */) = 0
brk(NULL)                               = 0x5555557a4000
brk(0x5555557a4d00)                     = 0x5555557a4d00
arch_prctl(ARCH_SET_FS, 0x5555557a4380) = 0
set_tid_address(0x5555557a4650)         = 290
set_robust_list(0x5555557a4660, 24)     = 0
rseq(0x5555557a4ca0, 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-executor2603697229", 4096) = 28
getrandom("\x9e\x39\xff\x94\x6d\x1c\x78\x49", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555557a4d00
brk(0x5555557c5d00)                     = 0x5555557c5d00
brk(0x5555557c6000)                     = 0x5555557c6000
mprotect(0x7f6f31a50000, 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
getrandom("\xdd\x01\xc0\x7b\xf4\xf9\xe9\x15", 8, GRND_NONBLOCK) = 8
mkdir("./syzkaller.NxNrXk", 0700)       = 0
chmod("./syzkaller.NxNrXk", 0777)       = 0
chdir("./syzkaller.NxNrXk")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555557a4650) = 291
./strace-static-x86_64: Process 291 attached
[pid   291] set_robust_list(0x5555557a4660, 24) = 0
[pid   291] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   291] setsid()                    = 1
[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] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   291] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   291] chdir("/")                  = 0
[   23.545820][   T24] audit: type=1400 audit(1723407705.000:66): avc:  denied  { execmem } for  pid=290 comm="syz-executor260" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   23.565121][   T24] audit: type=1400 audit(1723407705.020:67): avc:  denied  { mounton } for  pid=291 comm="syz-executor260" 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   291] umount2("./pivot", MNT_DETACH) = 0
[pid   291] chroot("./newroot")         = 0
[pid   291] chdir("/")                  = 0
[pid   291] mkdir("/dev/binderfs", 0777) = 0
[pid   291] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   291] mkdir("./0", 0777)          = 0
[pid   291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555557a4650) = 2
./strace-static-x86_64: Process 292 attached
[pid   292] set_robust_list(0x5555557a4660, 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", 000)       = 0
[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)
[   23.588835][   T24] audit: type=1400 audit(1723407705.020:68): avc:  denied  { mount } for  pid=291 comm="syz-executor260" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[   23.610967][   T24] audit: type=1400 audit(1723407705.020:69): avc:  denied  { mounton } for  pid=291 comm="syz-executor260" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   23.621091][  T292] incfs: ino conflict with backing FS 8
[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} ---
[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, 0x5555557a56f0 /* 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, 0x5555557ad730 /* 2 entries */, 32768) = 48
[pid   291] getdents64(4, 0x5555557ad730 /* 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, 0x5555557ad730 /* 2 entries */, 32768) = 48
[pid   291] getdents64(4, 0x5555557ad730 /* 0 entries */, 32768) = 0
[pid   291] close(4)                    = 0
[pid   291] rmdir("./0/.index")         = 0
[   23.632260][   T24] audit: type=1400 audit(1723407705.050:70): avc:  denied  { mounton } for  pid=291 comm="syz-executor260" path="/root/syzkaller.NxNrXk/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   23.661943][   T24] audit: type=1400 audit(1723407705.050:71): avc:  denied  { mount } for  pid=291 comm="syz-executor260" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   23.662065][  T291] ------------[ cut here ]------------
[   23.683829][   T24] audit: type=1400 audit(1723407705.050:72): avc:  denied  { mounton } for  pid=291 comm="syz-executor260" path="/root/syzkaller.NxNrXk/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
[   23.689373][  T291] WARNING: CPU: 0 PID: 291 at fs/inode.c:304 drop_nlink+0xc1/0x110
[   23.714174][   T24] audit: type=1400 audit(1723407705.050:73): avc:  denied  { mount } for  pid=291 comm="syz-executor260" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   23.714189][   T24] audit: type=1400 audit(1723407705.060:74): avc:  denied  { unmount } for  pid=291 comm="syz-executor260" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   23.714205][   T24] audit: type=1400 audit(1723407705.070:75): avc:  denied  { mounton } for  pid=291 comm="syz-executor260" path="/dev/binderfs" dev="devtmpfs" ino=357 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   23.785731][  T291] Modules linked in:
[   23.789428][  T291] CPU: 1 PID: 291 Comm: syz-executor260 Not tainted 5.10.222-syzkaller-01494-gfd58936f3c1f #0
[   23.799476][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[   23.809601][  T291] RIP: 0010:drop_nlink+0xc1/0x110
[   23.814395][  T291] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 07 ce f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 1f 34 b3 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   23.833880][  T291] RSP: 0018:ffffc90000c17be8 EFLAGS: 00010293
[   23.839758][  T291] RAX: ffffffff81b774e1 RBX: 0000000000000000 RCX: ffff88811ce2e2c0
[   23.847561][  T291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.855345][  T291] RBP: ffffc90000c17c10 R08: ffffffff81b77464 R09: 0000000000000003
[   23.863185][  T291] R10: fffff52000182f6c R11: dffffc0000000001 R12: dffffc0000000000
[   23.870990][  T291] R13: 1ffff110240a3089 R14: ffff888120518400 R15: ffff888120518448
[   23.878801][  T291] FS:  00005555557a4380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   23.887560][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.893976][  T291] CR2: 0000000002471258 CR3: 000000011bc6f000 CR4: 00000000003506a0
[   23.901805][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.909605][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.917421][  T291] Call Trace:
[   23.920540][  T291]  ? show_regs+0x58/0x60
[   23.924604][  T291]  ? __warn+0x160/0x2f0
[   23.928640][  T291]  ? drop_nlink+0xc1/0x110
[   23.932853][  T291]  ? report_bug+0x3d9/0x5b0
[   23.937227][  T291]  ? drop_nlink+0xc1/0x110
[   23.941445][  T291]  ? handle_bug+0x41/0x70
[   23.945605][  T291]  ? exc_invalid_op+0x1b/0x50
[   23.950151][  T291]  ? asm_exc_invalid_op+0x12/0x20
[   23.954986][  T291]  ? drop_nlink+0x44/0x110
[   23.959293][  T291]  ? drop_nlink+0xc1/0x110
[   23.963489][  T291]  ? drop_nlink+0xc1/0x110
[   23.967765][  T291]  ? drop_nlink+0xc1/0x110
[   23.971996][  T291]  shmem_rmdir+0x59/0x90
[   23.976357][  T291]  vfs_rmdir+0x2b7/0x3f0
[   23.980414][  T291]  incfs_kill_sb+0x108/0x220
[   23.984840][  T291]  deactivate_locked_super+0xad/0x110
[   23.990085][  T291]  deactivate_super+0xbe/0xf0
[   23.994650][  T291]  cleanup_mnt+0x45c/0x510
[   23.998954][  T291]  __cleanup_mnt+0x19/0x20
[   24.003158][  T291]  task_work_run+0x129/0x190
[   24.007633][  T291]  ptrace_notify+0x29e/0x350
[   24.012010][  T291]  ? do_notify_parent+0xa10/0xa10
[   24.016898][  T291]  ? user_path_at_empty+0x40/0x50
[   24.021731][  T291]  ? __x64_sys_umount+0x122/0x170
[   24.026617][  T291]  ? path_umount+0xea0/0xea0
[   24.031018][  T291]  syscall_exit_to_user_mode+0xf5/0x1a0
[   24.036433][  T291]  do_syscall_64+0x40/0x70
[   24.040651][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.046414][  T291] RIP: 0033:0x7f6f319dd9a7
[   24.050634][  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
[   24.070103][  T291] RSP: 002b:00007ffc1b2fe5e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.078331][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6f319dd9a7
[   24.086147][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1b2fe6a0
[   24.093937][  T291] RBP: 00007ffc1b2fe6a0 R08: 0000000000000000 R09: 0000000000000000
[   24.101776][  T291] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc1b2ff710
[   24.109579][  T291] R13: 00005555557a56c0 R14: 00007ffc1b2ff710 R15: 0000000000000001
[   24.117396][  T291] ---[ end trace 4abc3cd1f4e1d47c ]---
[   24.122703][  T291] ==================================================================
[   24.130568][  T291] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   24.136639][  T291] Write of size 4 at addr 0000000000000170 by task syz-executor260/291
[   24.144706][  T291] 
[   24.146896][  T291] CPU: 1 PID: 291 Comm: syz-executor260 Tainted: G        W         5.10.222-syzkaller-01494-gfd58936f3c1f #0
[   24.158335][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[   24.168230][  T291] Call Trace:
[   24.171362][  T291]  dump_stack_lvl+0x1e2/0x24b
[   24.175869][  T291]  ? panic+0x812/0x812
[   24.179779][  T291]  ? bfq_pos_tree_add_move+0x43b/0x43b
[   24.185071][  T291]  ? _raw_spin_lock+0xa4/0x1b0
[   24.189670][  T291]  ? _raw_spin_trylock_bh+0x190/0x190
[   24.194880][  T291]  kasan_report+0x167/0x1c0
[   24.199219][  T291]  ? ihold+0x20/0x60
[   24.202951][  T291]  ? ihold+0x20/0x60
[   24.206680][  T291]  kasan_check_range+0x293/0x2a0
[   24.211460][  T291]  __kasan_check_write+0x14/0x20
[   24.216232][  T291]  ihold+0x20/0x60
[   24.219787][  T291]  vfs_rmdir+0x200/0x3f0
[   24.223874][  T291]  incfs_kill_sb+0x108/0x220
[   24.228319][  T291]  deactivate_locked_super+0xad/0x110
[   24.233501][  T291]  deactivate_super+0xbe/0xf0
[   24.238018][  T291]  cleanup_mnt+0x45c/0x510
[   24.242269][  T291]  __cleanup_mnt+0x19/0x20
[   24.246522][  T291]  task_work_run+0x129/0x190
[   24.250948][  T291]  ptrace_notify+0x29e/0x350
[   24.255380][  T291]  ? do_notify_parent+0xa10/0xa10
[   24.260234][  T291]  ? user_path_at_empty+0x40/0x50
[   24.265094][  T291]  ? __x64_sys_umount+0x122/0x170
[   24.269954][  T291]  ? path_umount+0xea0/0xea0
[   24.274384][  T291]  syscall_exit_to_user_mode+0xf5/0x1a0
[   24.279762][  T291]  do_syscall_64+0x40/0x70
[   24.284017][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.289744][  T291] RIP: 0033:0x7f6f319dd9a7
[   24.293995][  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
[   24.313439][  T291] RSP: 002b:00007ffc1b2fe5e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.321685][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6f319dd9a7
[   24.329494][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1b2fe6a0
[   24.337307][  T291] RBP: 00007ffc1b2fe6a0 R08: 0000000000000000 R09: 0000000000000000
[   24.345116][  T291] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc1b2ff710
[   24.352932][  T291] R13: 00005555557a56c0 R14: 00007ffc1b2ff710 R15: 0000000000000001
[   24.360831][  T291] ==================================================================
[   24.368723][  T291] Disabling lock debugging due to kernel taint
[   24.374795][  T291] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   24.382360][  T291] #PF: supervisor write access in kernel mode
[   24.388253][  T291] #PF: error_code(0x0002) - not-present page
[   24.394089][  T291] PGD 0 P4D 0 
[   24.397287][  T291] Oops: 0002 [#1] PREEMPT SMP KASAN
[   24.402346][  T291] CPU: 1 PID: 291 Comm: syz-executor260 Tainted: G    B   W         5.10.222-syzkaller-01494-gfd58936f3c1f #0
[   24.413771][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[   24.423673][  T291] RIP: 0010:ihold+0x25/0x60
[   24.428010][  T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 31 2c b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 f0 c5 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 b4 2f b3
[   24.447447][  T291] RSP: 0018:ffffc90000c17c28 EFLAGS: 00010246
[   24.453357][  T291] RAX: ffff88811ce2e200 RBX: 0000000000000001 RCX: ffff88811ce2e2c0
[   24.461161][  T291] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   24.468973][  T291] RBP: ffffc90000c17c38 R08: ffffffff813e275b R09: 0000000000000003
[   24.476784][  T291] R10: fffffbfff0e10c48 R11: dffffc0000000001 R12: dffffc0000000000
[   24.484596][  T291] R13: ffff88811d21ddd0 R14: 0000000000000000 R15: 0000000000000000
[   24.492410][  T291] FS:  00005555557a4380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   24.501174][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.507609][  T291] CR2: 0000000000000170 CR3: 000000011bc6f000 CR4: 00000000003506a0
[   24.515422][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.523223][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.531035][  T291] Call Trace:
[   24.534166][  T291]  ? __die_body+0x62/0xb0
[   24.538324][  T291]  ? __die+0x7e/0x90
[   24.542058][  T291]  ? no_context+0x9f9/0xd20
[   24.546394][  T291]  ? is_prefetch+0x5c0/0x5c0
[   24.550909][  T291]  ? preempt_schedule+0xd9/0xe0
[   24.555603][  T291]  ? __kasan_check_read+0x11/0x20
[   24.560456][  T291]  ? preempt_schedule_common+0xbe/0xf0
[   24.565749][  T291]  ? preempt_schedule+0xd9/0xe0
[   24.570438][  T291]  ? schedule_preempt_disabled+0x20/0x20
[   24.575907][  T291]  ? sysvec_apic_timer_interrupt+0xcb/0xe0
[   24.581545][  T291]  ? __bad_area_nosemaphore+0xc4/0x430
[   24.586840][  T291]  ? bad_area_nosemaphore+0x2d/0x40
[   24.591874][  T291]  ? exc_page_fault+0x3df/0x5b0
[   24.596566][  T291]  ? asm_exc_page_fault+0x1e/0x30
[   24.601424][  T291]  ? check_panic_on_warn+0x5b/0xb0
[   24.606371][  T291]  ? ihold+0x25/0x60
[   24.610099][  T291]  ? ihold+0x20/0x60
[   24.613835][  T291]  vfs_rmdir+0x200/0x3f0
[   24.617915][  T291]  incfs_kill_sb+0x108/0x220
[   24.622340][  T291]  deactivate_locked_super+0xad/0x110
[   24.627548][  T291]  deactivate_super+0xbe/0xf0
[   24.632062][  T291]  cleanup_mnt+0x45c/0x510
[   24.636330][  T291]  __cleanup_mnt+0x19/0x20
[   24.640572][  T291]  task_work_run+0x129/0x190
[   24.645006][  T291]  ptrace_notify+0x29e/0x350
[   24.649428][  T291]  ? do_notify_parent+0xa10/0xa10
[   24.654290][  T291]  ? user_path_at_empty+0x40/0x50
[   24.659148][  T291]  ? __x64_sys_umount+0x122/0x170
[   24.664002][  T291]  ? path_umount+0xea0/0xea0
[   24.668431][  T291]  syscall_exit_to_user_mode+0xf5/0x1a0
[   24.673808][  T291]  do_syscall_64+0x40/0x70
[   24.678063][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.683788][  T291] RIP: 0033:0x7f6f319dd9a7
[   24.688044][  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
[   24.707604][  T291] RSP: 002b:00007ffc1b2fe5e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.715846][  T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6f319dd9a7
[   24.723651][  T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1b2fe6a0
[   24.731462][  T291] RBP: 00007ffc1b2fe6a0 R08: 0000000000000000 R09: 0000000000000000
[   24.739275][  T291] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc1b2ff710
[   24.747086][  T291] R13: 00005555557a56c0 R14: 00007ffc1b2ff710 R15: 0000000000000001
[   24.754894][  T291] Modules linked in:
[   24.758640][  T291] CR2: 0000000000000170
[   24.762656][  T291] ---[ end trace 4abc3cd1f4e1d47d ]---
[   24.767929][  T291] RIP: 0010:ihold+0x25/0x60
[   24.772259][  T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 31 2c b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 f0 c5 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 b4 2f b3
[   24.791699][  T291] RSP: 0018:ffffc90000c17c28 EFLAGS: 00010246
[   24.797596][  T291] RAX: ffff88811ce2e200 RBX: 0000000000000001 RCX: ffff88811ce2e2c0
[   24.805501][  T291] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   24.813313][  T291] RBP: ffffc90000c17c38 R08: ffffffff813e275b R09: 0000000000000003
[   24.821126][  T291] R10: fffffbfff0e10c48 R11: dffffc0000000001 R12: dffffc0000000000
[   24.828936][  T291] R13: ffff88811d21ddd0 R14: 0000000000000000 R15: 0000000000000000
[   24.836749][  T291] FS:  00005555557a4380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   24.845513][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.851935][  T291] CR2: 0000000000000170 CR3: 000000011bc6f000 CR4: 00000000003506a0
[   24.859749][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.867558][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.875378][  T291] Kernel panic - not syncing: Fatal exception
[   24.881468][  T291] Kernel Offset: disabled
[   24.885583][  T291] Rebooting in 86400 seconds..