./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2605177579
<...>
Warning: Permanently added '10.128.0.55' (ED25519) to the list of known hosts.
execve("./syz-executor2605177579", ["./syz-executor2605177579"], 0x7ffe25a5af60 /* 10 vars */) = 0
brk(NULL) = 0x555556d10000
brk(0x555556d10d00) = 0x555556d10d00
arch_prctl(ARCH_SET_FS, 0x555556d10380) = 0
set_tid_address(0x555556d10650) = 341
set_robust_list(0x555556d10660, 24) = 0
rseq(0x555556d10ca0, 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-executor2605177579", 4096) = 28
getrandom("\xfe\xb5\x26\x96\xee\x18\xa8\xe0", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555556d10d00
brk(0x555556d31d00) = 0x555556d31d00
brk(0x555556d32000) = 0x555556d32000
mprotect(0x7fb916733000, 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
mkdir("./syzkaller.cTl253", 0700) = 0
chmod("./syzkaller.cTl253", 0777) = 0
chdir("./syzkaller.cTl253") = 0
unshare(CLONE_NEWPID) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d10650) = 343
./strace-static-x86_64: Process 343 attached
[pid 343] set_robust_list(0x555556d10660, 24) = 0
[pid 343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 343] getppid() = 0
[pid 343] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid 343] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid 343] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid 343] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid 343] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid 343] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid 343] unshare(CLONE_NEWNS) = 0
[pid 343] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid 343] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument)
[pid 343] unshare(CLONE_NEWCGROUP) = 0
[pid 343] unshare(CLONE_NEWUTS) = 0
[pid 343] unshare(CLONE_SYSVSEM) = 0
[pid 343] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 343] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 343] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 343] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 343] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 343] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 343] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 343] getpid() = 1
[pid 343] 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, 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, inheritable=0}) = 0
[pid 343] 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, 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, inheritable=0}) = 0
[pid 343] unshare(CLONE_NEWNET) = 0
[pid 343] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid 343] write(3, "0 65535", 7) = 7
[pid 343] close(3) = 0
[pid 343] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid 343] write(3, "100000", 6) = 6
[pid 343] close(3) = 0
[pid 343] mkdir("./syz-tmp", 0777) = 0
[ 23.226561][ T23] audit: type=1400 audit(1747352172.280:81): avc: denied { execmem } for pid=341 comm="syz-executor260" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 23.253017][ T23] audit: type=1400 audit(1747352172.310:82): avc: denied { mounton } for pid=343 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
[pid 343] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid 343] mkdir("./syz-tmp/newroot", 0777) = 0
[pid 343] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid 343] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid 343] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid 343] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid 343] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid 343] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid 343] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid 343] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid 343] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid 343] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid 343] 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 343] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid 343] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid 343] 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 343] mkdir("./syz-tmp/pivot", 0777) = 0
[pid 343] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid 343] chdir("/") = 0
[pid 343] umount2("./pivot", MNT_DETACH) = 0
[pid 343] chroot("./newroot") = 0
[pid 343] chdir("/") = 0
[ 23.292601][ T23] audit: type=1400 audit(1747352172.350:83): avc: denied { mounton } for pid=343 comm="syz-executor260" path="/root/syzkaller.cTl253/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[ 23.317816][ T23] audit: type=1400 audit(1747352172.350:84): avc: denied { mount } for pid=343 comm="syz-executor260" name="/" dev="tmpfs" ino=11546 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid 343] mkdir("/dev/gadgetfs", 0777) = 0
[pid 343] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid 343] mkdir("/dev/binderfs", 0777) = 0
[pid 343] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid 343] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid 343] mkdir("./0", 0777) = 0
[pid 343] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d10650) = 2
./strace-static-x86_64: Process 344 attached
[pid 344] set_robust_list(0x555556d10660, 24) = 0
[pid 344] chdir("./0") = 0
[pid 344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 344] setpgid(0, 0) = 0
[pid 344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 344] write(3, "1000", 4executing program
) = 4
[pid 344] close(3) = 0
[pid 344] symlink("/dev/binderfs", "./binderfs") = 0
[pid 344] write(1, "executing program\n", 18) = 18
[pid 344] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid 344] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid 344] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid 344] close(3) = -1 EBADF (Bad file descriptor)
[pid 344] close(4) = -1 EBADF (Bad file descriptor)
[pid 344] close(5) = -1 EBADF (Bad file descriptor)
[pid 344] close(6) = -1 EBADF (Bad file descriptor)
[pid 344] close(7) = -1 EBADF (Bad file descriptor)
[ 23.341054][ T23] audit: type=1400 audit(1747352172.370:85): avc: denied { mounton } for pid=343 comm="syz-executor260" path="/root/syzkaller.cTl253/syz-tmp/newroot/dev" dev="tmpfs" ino=11548 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[ 23.342968][ T343] request_module fs-gadgetfs succeeded, but still no fs?
[pid 344] close(8) = -1 EBADF (Bad file descriptor)
[pid 344] close(9) = -1 EBADF (Bad file descriptor)
[pid 344] close(10) = -1 EBADF (Bad file descriptor)
[pid 344] close(11) = -1 EBADF (Bad file descriptor)
[pid 344] close(12) = -1 EBADF (Bad file descriptor)
[pid 344] close(13) = -1 EBADF (Bad file descriptor)
[pid 344] close(14) = -1 EBADF (Bad file descriptor)
[pid 344] close(15) = -1 EBADF (Bad file descriptor)
[pid 344] close(16) = -1 EBADF (Bad file descriptor)
[pid 344] close(17) = -1 EBADF (Bad file descriptor)
[pid 344] close(18) = -1 EBADF (Bad file descriptor)
[pid 344] close(19) = -1 EBADF (Bad file descriptor)
[pid 344] close(20) = -1 EBADF (Bad file descriptor)
[pid 344] close(21) = -1 EBADF (Bad file descriptor)
[pid 344] close(22) = -1 EBADF (Bad file descriptor)
[pid 344] close(23) = -1 EBADF (Bad file descriptor)
[pid 344] close(24) = -1 EBADF (Bad file descriptor)
[pid 344] close(25) = -1 EBADF (Bad file descriptor)
[pid 344] close(26) = -1 EBADF (Bad file descriptor)
[pid 344] close(27) = -1 EBADF (Bad file descriptor)
[pid 344] close(28) = -1 EBADF (Bad file descriptor)
[pid 344] close(29) = -1 EBADF (Bad file descriptor)
[pid 344] exit_group(0) = ?
[pid 344] +++ exited with 0 +++
[pid 343] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid 343] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid 343] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid 343] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid 343] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid 343] getdents64(3, 0x555556d116f0 /* 6 entries */, 32768) = 176
[pid 343] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid 343] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid 343] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid 343] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid 343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid 343] getdents64(4, 0x555556d19730 /* 2 entries */, 32768) = 48
[pid 343] getdents64(4, 0x555556d19730 /* 0 entries */, 32768) = 0
[pid 343] close(4) = 0
[pid 343] rmdir("./0/.incomplete") = 0
[pid 343] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid 343] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid 343] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid 343] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid 343] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid 343] getdents64(4, 0x555556d19730 /* 2 entries */, 32768) = 48
[pid 343] getdents64(4, 0x555556d19730 /* 0 entries */, 32768) = 0
[pid 343] close(4) = 0
[pid 343] rmdir("./0/.index") = 0
[ 23.367307][ T23] audit: type=1400 audit(1747352172.370:86): avc: denied { mount } for pid=343 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
[ 23.396969][ T23] audit: type=1400 audit(1747352172.370:87): avc: denied { mounton } for pid=343 comm="syz-executor260" path="/root/syzkaller.cTl253/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
[ 23.424456][ T23] audit: type=1400 audit(1747352172.370:88): avc: denied { mounton } for pid=343 comm="syz-executor260" path="/root/syzkaller.cTl253/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=11553 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[ 23.424613][ T343] ------------[ cut here ]------------
[ 23.452385][ T23] audit: type=1400 audit(1747352172.370:89): avc: denied { unmount } for pid=343 comm="syz-executor260" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[ 23.458050][ T343] WARNING: CPU: 1 PID: 343 at fs/inode.c:302 drop_nlink+0xc5/0x110
[ 23.478240][ T23] audit: type=1400 audit(1747352172.390:90): avc: denied { mounton } for pid=343 comm="syz-executor260" path="/dev/gadgetfs" dev="devtmpfs" ino=11556 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[ 23.486159][ T343] Modules linked in:
[ 23.486179][ T343] CPU: 1 PID: 343 Comm: syz-executor260 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
[ 23.486183][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 23.486199][ T343] RIP: 0010:drop_nlink+0xc5/0x110
[ 23.486208][ T343] Code: 1b 48 8d bb d0 04 00 00 be 08 00 00 00 e8 b3 a4 f3 ff f0 48 ff 83 d0 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 4b d0 c5 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[ 23.486223][ T343] RSP: 0018:ffff8881f3fc7b40 EFLAGS: 00010293
[ 23.564948][ T343] RAX: ffffffff8199ae95 RBX: ffff8881ee042688 RCX: ffff8881f30c8000
[ 23.573364][ T343] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 23.581469][ T343] RBP: ffff8881f3fc7b68 R08: 0000000000000004 R09: 0000000000000003
[ 23.589434][ T343] R10: ffffed103e7f8f58 R11: 1ffff1103e7f8f58 R12: dffffc0000000000
[ 23.597593][ T343] R13: 1ffff1103dc084da R14: ffff8881ee0426d0 R15: 0000000000000000
[ 23.605572][ T343] FS: 0000555556d10380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[ 23.614600][ T343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 23.621317][ T343] CR2: 0000559f8d2fd338 CR3: 00000001dfce0000 CR4: 00000000003406a0
[ 23.629320][ T343] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 23.637406][ T343] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 23.645473][ T343] Call Trace:
[ 23.648918][ T343] shmem_rmdir+0x5b/0x90
[ 23.653420][ T343] vfs_rmdir+0x1b3/0x3e0
[ 23.657650][ T343] incfs_kill_sb+0xfe/0x210
[ 23.662519][ T343] deactivate_locked_super+0xa0/0x100
[ 23.668005][ T343] deactivate_super+0x14f/0x1d0
[ 23.672857][ T343] ? __kasan_check_write+0x14/0x20
[ 23.677975][ T343] ? deactivate_locked_super+0x100/0x100
[ 23.683641][ T343] ? fast_dput+0x83/0x290
[ 23.688227][ T343] cleanup_mnt+0x446/0x500
[ 23.692642][ T343] __cleanup_mnt+0x19/0x20
[ 23.697060][ T343] task_work_run+0x146/0x170
[ 23.701643][ T343] ptrace_notify+0x212/0x250
[ 23.706308][ T343] ? do_notify_parent+0x7e0/0x7e0
[ 23.711321][ T343] ? ksys_umount+0x266/0x360
[ 23.716082][ T343] ? namespace_unlock+0x3e0/0x3e0
[ 23.721178][ T343] syscall_slow_exit_work+0x17e/0x440
[ 23.726558][ T343] do_syscall_64+0x160/0x170
[ 23.731157][ T343] entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ 23.737075][ T343] RIP: 0033:0x7fb9166c0ac7
[ 23.741494][ T343] 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
[ 23.761578][ T343] RSP: 002b:00007ffff5a6cc88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 23.770064][ T343] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb9166c0ac7
[ 23.778021][ T343] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5a6cd40
[ 23.785994][ T343] RBP: 00007ffff5a6cd40 R08: 0000000000000000 R09: 0000000000000000
[ 23.794059][ T343] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffff5a6ddb0
[ 23.802146][ T343] R13: 0000555556d116c0 R14: 00007ffff5a6ddb0 R15: 0000000000000001
[ 23.810113][ T343] ---[ end trace a41a975ef7435e85 ]---
[ 23.815719][ T343] ==================================================================
[ 23.823878][ T343] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[ 23.830103][ T343] Write of size 4 at addr 0000000000000160 by task syz-executor260/343
[ 23.838323][ T343]
[ 23.840694][ T343] CPU: 1 PID: 343 Comm: syz-executor260 Tainted: G W 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
[ 23.852225][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 23.862376][ T343] Call Trace:
[ 23.865656][ T343] __dump_stack+0x1e/0x20
[ 23.869968][ T343] dump_stack+0x15b/0x1b8
[ 23.874280][ T343] ? thaw_kernel_threads+0x220/0x220
[ 23.879672][ T343] ? show_regs_print_info+0x18/0x18
[ 23.884951][ T343] ? __kasan_check_write+0x14/0x20
[ 23.890053][ T343] ? _raw_spin_lock+0x8e/0xe0
[ 23.894715][ T343] ? ihold+0x20/0x60
[ 23.898693][ T343] ? ihold+0x20/0x60
[ 23.902581][ T343] __kasan_report+0xe4/0x120
[ 23.907155][ T343] ? ihold+0x20/0x60
[ 23.911034][ T343] kasan_report+0x30/0x60
[ 23.915434][ T343] check_memory_region+0x274/0x280
[ 23.920682][ T343] __kasan_check_write+0x14/0x20
[ 23.925599][ T343] ihold+0x20/0x60
[ 23.929332][ T343] vfs_rmdir+0x247/0x3e0
[ 23.933571][ T343] incfs_kill_sb+0xfe/0x210
[ 23.938076][ T343] deactivate_locked_super+0xa0/0x100
[ 23.943445][ T343] deactivate_super+0x14f/0x1d0
[ 23.948463][ T343] ? __kasan_check_write+0x14/0x20
[ 23.953559][ T343] ? deactivate_locked_super+0x100/0x100
[ 23.959390][ T343] ? fast_dput+0x83/0x290
[ 23.963747][ T343] cleanup_mnt+0x446/0x500
[ 23.968154][ T343] __cleanup_mnt+0x19/0x20
[ 23.972557][ T343] task_work_run+0x146/0x170
[ 23.977129][ T343] ptrace_notify+0x212/0x250
[ 23.981701][ T343] ? do_notify_parent+0x7e0/0x7e0
[ 23.986724][ T343] ? ksys_umount+0x266/0x360
[ 23.991296][ T343] ? namespace_unlock+0x3e0/0x3e0
[ 23.996307][ T343] syscall_slow_exit_work+0x17e/0x440
[ 24.001843][ T343] do_syscall_64+0x160/0x170
[ 24.006419][ T343] entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ 24.012512][ T343] RIP: 0033:0x7fb9166c0ac7
[ 24.016921][ T343] 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
[ 24.036705][ T343] RSP: 002b:00007ffff5a6cc88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 24.045246][ T343] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb9166c0ac7
[ 24.053205][ T343] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5a6cd40
[ 24.061249][ T343] RBP: 00007ffff5a6cd40 R08: 0000000000000000 R09: 0000000000000000
[ 24.069337][ T343] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffff5a6ddb0
[ 24.077585][ T343] R13: 0000555556d116c0 R14: 00007ffff5a6ddb0 R15: 0000000000000001
[ 24.085736][ T343] ==================================================================
[ 24.093784][ T343] Disabling lock debugging due to kernel taint
[ 24.100324][ T343] BUG: kernel NULL pointer dereference, address: 0000000000000160
[ 24.108318][ T343] #PF: supervisor write access in kernel mode
[ 24.114374][ T343] #PF: error_code(0x0002) - not-present page
[ 24.120341][ T343] PGD 0 P4D 0
[ 24.123722][ T343] Oops: 0002 [#1] PREEMPT SMP KASAN
[ 24.128911][ T343] CPU: 1 PID: 343 Comm: syz-executor260 Tainted: G B W 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
[ 24.140519][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 24.150588][ T343] RIP: 0010:ihold+0x26/0x60
[ 24.155073][ T343] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 61 c8 c5 ff 48 8d bb 60 01 00 00 be 04 00 00 00 e8 a0 9c f3 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 60 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 81
[ 24.175065][ T343] RSP: 0018:ffff8881f3fc7b80 EFLAGS: 00010246
[ 24.181490][ T343] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881f30c8000
[ 24.189545][ T343] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[ 24.197515][ T343] RBP: ffff8881f3fc7b90 R08: 0000000000000004 R09: 0000000000000003
[ 24.205753][ T343] R10: fffffbfff0ca7a5c R11: 1ffffffff0ca7a5c R12: 1ffff1103b95a77c
[ 24.213793][ T343] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[ 24.221862][ T343] FS: 0000555556d10380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[ 24.230887][ T343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 24.237564][ T343] CR2: 0000000000000160 CR3: 00000001dfce0000 CR4: 00000000003406a0
[ 24.245535][ T343] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 24.253500][ T343] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 24.261455][ T343] Call Trace:
[ 24.264731][ T343] vfs_rmdir+0x247/0x3e0
[ 24.269168][ T343] incfs_kill_sb+0xfe/0x210
[ 24.273671][ T343] deactivate_locked_super+0xa0/0x100
[ 24.279026][ T343] deactivate_super+0x14f/0x1d0
[ 24.283859][ T343] ? __kasan_check_write+0x14/0x20
[ 24.288950][ T343] ? deactivate_locked_super+0x100/0x100
[ 24.294655][ T343] ? fast_dput+0x83/0x290
[ 24.299062][ T343] cleanup_mnt+0x446/0x500
[ 24.303484][ T343] __cleanup_mnt+0x19/0x20
[ 24.308053][ T343] task_work_run+0x146/0x170
[ 24.312777][ T343] ptrace_notify+0x212/0x250
[ 24.317469][ T343] ? do_notify_parent+0x7e0/0x7e0
[ 24.322653][ T343] ? ksys_umount+0x266/0x360
[ 24.327284][ T343] ? namespace_unlock+0x3e0/0x3e0
[ 24.332495][ T343] syscall_slow_exit_work+0x17e/0x440
[ 24.337865][ T343] do_syscall_64+0x160/0x170
[ 24.342445][ T343] entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ 24.348410][ T343] RIP: 0033:0x7fb9166c0ac7
[ 24.352958][ T343] 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
[ 24.373241][ T343] RSP: 002b:00007ffff5a6cc88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 24.381734][ T343] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb9166c0ac7
[ 24.389871][ T343] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5a6cd40
[ 24.397839][ T343] RBP: 00007ffff5a6cd40 R08: 0000000000000000 R09: 0000000000000000
[ 24.406056][ T343] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffff5a6ddb0
[ 24.414222][ T343] R13: 0000555556d116c0 R14: 00007ffff5a6ddb0 R15: 0000000000000001
[ 24.422219][ T343] Modules linked in:
[ 24.426103][ T343] CR2: 0000000000000160
[ 24.430254][ T343] ---[ end trace a41a975ef7435e86 ]---
[ 24.435703][ T343] RIP: 0010:ihold+0x26/0x60
[ 24.440279][ T343] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 61 c8 c5 ff 48 8d bb 60 01 00 00 be 04 00 00 00 e8 a0 9c f3 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 60 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 81
[ 24.459883][ T343] RSP: 0018:ffff8881f3fc7b80 EFLAGS: 00010246
[ 24.466145][ T343] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881f30c8000
[ 24.474494][ T343] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[ 24.482466][ T343] RBP: ffff8881f3fc7b90 R08: 0000000000000004 R09: 0000000000000003
[ 24.490435][ T343] R10: fffffbfff0ca7a5c R11: 1ffffffff0ca7a5c R12: 1ffff1103b95a77c
[ 24.498645][ T343] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[ 24.506856][ T343] FS: 0000555556d10380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[ 24.515858][ T343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 24.522431][ T343] CR2: 0000000000000160 CR3: 00000001dfce0000 CR4: 00000000003406a0
[ 24.530506][ T343] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 24.538774][ T343] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 24.547123][ T343] Kernel panic - not syncing: Fatal exception
[ 24.553414][ T343] Kernel Offset: disabled
[ 24.558204][ T343] Rebooting in 86400 seconds..