./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3051331103

<...>
d  { noatsecure } for  pid=218 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   12.177079][   T24] audit: type=1400 audit(1745242930.220:63): avc:  denied  { write } for  pid=218 comm="sh" path="pipe:[13564]" dev="pipefs" ino=13564 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[   12.180257][   T24] audit: type=1400 audit(1745242930.220:64): avc:  denied  { rlimitinh } for  pid=218 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   12.183118][   T24] audit: type=1400 audit(1745242930.220:65): avc:  denied  { siginh } for  pid=218 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.0.208' (ED25519) to the list of known hosts.
execve("./syz-executor3051331103", ["./syz-executor3051331103"], 0x7ffe1889d070 /* 10 vars */) = 0
brk(NULL)                               = 0x555570d97000
brk(0x555570d97d00)                     = 0x555570d97d00
arch_prctl(ARCH_SET_FS, 0x555570d97380) = 0
set_tid_address(0x555570d97650)         = 288
set_robust_list(0x555570d97660, 24)     = 0
rseq(0x555570d97ca0, 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-executor3051331103", 4096) = 28
getrandom("\x13\xcf\xff\xdd\xea\x2f\x3c\x28", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555570d97d00
brk(0x555570db8d00)                     = 0x555570db8d00
brk(0x555570db9000)                     = 0x555570db9000
mprotect(0x7f1b702b4000, 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.1q8Zfk", 0700)       = 0
chmod("./syzkaller.1q8Zfk", 0777)       = 0
chdir("./syzkaller.1q8Zfk")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555570d97650) = 289
./strace-static-x86_64: Process 289 attached
[pid   289] set_robust_list(0x555570d97660, 24) = 0
[pid   289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   289] getppid()                   = 0
[pid   289] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   289] unshare(CLONE_NEWNS)        = 0
[pid   289] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   289] unshare(CLONE_NEWCGROUP)    = 0
[pid   289] unshare(CLONE_NEWUTS)       = 0
[pid   289] unshare(CLONE_SYSVSEM)      = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] getpid()                    = 1
[pid   289] 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   289] 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   289] unshare(CLONE_NEWNET)       = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "0 65535", 7)      = 7
[pid   289] close(3)                    = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "100000", 6)       = 6
[pid   289] close(3)                    = 0
[pid   289] mkdir("./syz-tmp", 0777)    = 0
[pid   289] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[   21.605268][   T24] audit: type=1400 audit(1745242939.640:66): avc:  denied  { execmem } for  pid=288 comm="syz-executor305" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   21.615341][   T24] audit: type=1400 audit(1745242939.660:67): avc:  denied  { mounton } for  pid=289 comm="syz-executor305" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   289] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   289] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   289] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   289] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   289] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   289] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   289] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] 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   289] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   289] 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   289] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   289] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   289] chdir("/")                  = 0
[pid   289] umount2("./pivot", MNT_DETACH) = 0
[pid   289] chroot("./newroot")         = 0
[pid   289] chdir("/")                  = 0
[pid   289] mkdir("/dev/gadgetfs", 0777) = 0
[   21.636437][   T24] audit: type=1400 audit(1745242939.680:68): avc:  denied  { mounton } for  pid=289 comm="syz-executor305" path="/root/syzkaller.1q8Zfk/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   21.660790][   T24] audit: type=1400 audit(1745242939.680:69): avc:  denied  { mount } for  pid=289 comm="syz-executor305" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   289] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   289] mkdir("/dev/binderfs", 0777) = 0
[pid   289] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   289] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   289] mkdir("./0", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555570d97650) = 2
./strace-static-x86_64: Process 290 attached
[pid   290] set_robust_list(0x555570d97660, 24) = 0
[pid   290] chdir("./0")                = 0
[pid   290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   290] setpgid(0, 0)               = 0
[pid   290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   290] write(3, "1000", 4)         = 4
[pid   290] close(3)                    = 0
[pid   290] symlink("/dev/binderfs", "./binderfs") = 0
[pid   290] write(1, "executing program\n", 18executing program
) = 18
[pid   290] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   290] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   290] mount("./file0", "./file0", "incremental-fs", MS_RDONLY, NULL) = 0
[pid   290] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   290] exit_group(0)               = ?
[pid   290] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555570d986f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   289] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(4, 0x555570da0730 /* 2 entries */, 32768) = 48
[pid   289] getdents64(4, 0x555570da0730 /* 0 entries */, 32768) = 0
[pid   289] close(4)                    = 0
[pid   289] rmdir("./0/.incomplete")    = 0
[pid   289] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[   21.682695][   T24] audit: type=1400 audit(1745242939.700:70): avc:  denied  { mounton } for  pid=289 comm="syz-executor305" path="/root/syzkaller.1q8Zfk/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
[   21.686215][  T289] request_module fs-gadgetfs succeeded, but still no fs?
[   21.707766][   T24] audit: type=1400 audit(1745242939.700:71): avc:  denied  { mount } for  pid=289 comm="syz-executor305" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   21.726000][  T290] incfs: ino conflict with backing FS 9
[pid   289] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   289] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(4, 0x555570da0730 /* 2 entries */, 32768) = 48
[pid   289] getdents64(4, 0x555570da0730 /* 0 entries */, 32768) = 0
[pid   289] close(4)                    = 0
[pid   289] rmdir("./0/.index")         = 0
[   21.736332][   T24] audit: type=1400 audit(1745242939.700:72): avc:  denied  { mounton } for  pid=289 comm="syz-executor305" path="/root/syzkaller.1q8Zfk/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
[   21.768175][   T24] audit: type=1400 audit(1745242939.700:73): avc:  denied  { mounton } for  pid=289 comm="syz-executor305" path="/root/syzkaller.1q8Zfk/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=13671 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   21.768317][  T289] ------------[ cut here ]------------
[   21.795575][   T24] audit: type=1400 audit(1745242939.710:74): avc:  denied  { unmount } for  pid=289 comm="syz-executor305" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   21.820219][   T24] audit: type=1400 audit(1745242939.730:75): avc:  denied  { mounton } for  pid=289 comm="syz-executor305" path="/dev/gadgetfs" dev="devtmpfs" ino=509 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   21.820610][  T289] WARNING: CPU: 1 PID: 289 at fs/inode.c:304 drop_nlink+0xc1/0x110
[   21.850733][  T289] Modules linked in:
[   21.854451][  T289] CPU: 0 PID: 289 Comm: syz-executor305 Not tainted 5.10.236-syzkaller #0
[   21.862802][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   21.872699][  T289] RIP: 0010:drop_nlink+0xc1/0x110
[   21.877557][  T289] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 f7 f8 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 6f 58 b3 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   21.896994][  T289] RSP: 0018:ffffc90000b47be8 EFLAGS: 00010293
[   21.902870][  T289] RAX: ffffffff81b76781 RBX: 0000000000000000 RCX: ffff88810d084f00
[   21.910712][  T289] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   21.918538][  T289] RBP: ffffc90000b47c10 R08: ffffffff81b76704 R09: 0000000000000003
[   21.926330][  T289] R10: fffff52000168f6c R11: dffffc0000000001 R12: dffffc0000000000
[   21.934123][  T289] R13: 1ffff11021a17c29 R14: ffff88810d0be100 R15: ffff88810d0be148
[   21.941956][  T289] FS:  0000555570d97380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   21.950708][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.957146][  T289] CR2: 0000562742403838 CR3: 000000011c333000 CR4: 00000000003506b0
[   21.964950][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   21.972774][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   21.980564][  T289] Call Trace:
[   21.983683][  T289]  shmem_rmdir+0x59/0x90
[   21.987778][  T289]  vfs_rmdir+0x2b7/0x3f0
[   21.991846][  T289]  incfs_kill_sb+0x108/0x220
[   21.996293][  T289]  deactivate_locked_super+0xad/0x110
[   22.001473][  T289]  deactivate_super+0xbe/0xf0
[   22.006006][  T289]  cleanup_mnt+0x45c/0x510
[   22.010236][  T289]  __cleanup_mnt+0x19/0x20
[   22.014492][  T289]  task_work_run+0x129/0x190
[   22.018944][  T289]  ptrace_notify+0x29e/0x350
[   22.023343][  T289]  ? do_notify_parent+0xa10/0xa10
[   22.028223][  T289]  ? user_path_at_empty+0x40/0x50
[   22.033088][  T289]  ? __x64_sys_umount+0x122/0x170
[   22.037944][  T289]  ? path_umount+0xea0/0xea0
[   22.042352][  T289]  syscall_exit_to_user_mode+0xf5/0x1a0
[   22.047751][  T289]  do_syscall_64+0x3d/0x40
[   22.051986][  T289]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   22.057736][  T289] RIP: 0033:0x7f1b70241ac7
[   22.061964][  T289] 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
[   22.081516][  T289] RSP: 002b:00007fff3c5b9648 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   22.089758][  T289] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1b70241ac7
[   22.097584][  T289] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3c5b9700
[   22.105465][  T289] RBP: 00007fff3c5b9700 R08: 0000000000000000 R09: 0000000000000000
[   22.113259][  T289] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff3c5ba770
[   22.121100][  T289] R13: 0000555570d986c0 R14: 00007fff3c5ba770 R15: 0000000000000001
[   22.128895][  T289] ---[ end trace 0bd16219243710a6 ]---
[   22.134205][  T289] ==================================================================
[   22.142073][  T289] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   22.148146][  T289] Write of size 4 at addr 0000000000000170 by task syz-executor305/289
[   22.156213][  T289] 
[   22.158388][  T289] CPU: 0 PID: 289 Comm: syz-executor305 Tainted: G        W         5.10.236-syzkaller #0
[   22.168106][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   22.177998][  T289] Call Trace:
[   22.181128][  T289]  dump_stack_lvl+0x1e2/0x24b
[   22.185639][  T289]  ? panic+0x812/0x812
[   22.189546][  T289]  ? bfq_pos_tree_add_move+0x43b/0x43b
[   22.194840][  T289]  ? _raw_spin_lock+0xa4/0x1b0
[   22.199439][  T289]  ? _raw_spin_trylock_bh+0x190/0x190
[   22.204654][  T289]  kasan_report+0x167/0x1c0
[   22.208987][  T289]  ? ihold+0x20/0x60
[   22.212721][  T289]  ? ihold+0x20/0x60
[   22.216450][  T289]  kasan_check_range+0x293/0x2a0
[   22.221224][  T289]  __kasan_check_write+0x14/0x20
[   22.225997][  T289]  ihold+0x20/0x60
[   22.229556][  T289]  vfs_rmdir+0x200/0x3f0
[   22.233659][  T289]  incfs_kill_sb+0x108/0x220
[   22.238062][  T289]  deactivate_locked_super+0xad/0x110
[   22.243270][  T289]  deactivate_super+0xbe/0xf0
[   22.247783][  T289]  cleanup_mnt+0x45c/0x510
[   22.252036][  T289]  __cleanup_mnt+0x19/0x20
[   22.256289][  T289]  task_work_run+0x129/0x190
[   22.260719][  T289]  ptrace_notify+0x29e/0x350
[   22.265144][  T289]  ? do_notify_parent+0xa10/0xa10
[   22.270002][  T289]  ? user_path_at_empty+0x40/0x50
[   22.274864][  T289]  ? __x64_sys_umount+0x122/0x170
[   22.279721][  T289]  ? path_umount+0xea0/0xea0
[   22.284156][  T289]  syscall_exit_to_user_mode+0xf5/0x1a0
[   22.289531][  T289]  do_syscall_64+0x3d/0x40
[   22.293789][  T289]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   22.299510][  T289] RIP: 0033:0x7f1b70241ac7
[   22.303768][  T289] 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
[   22.323204][  T289] RSP: 002b:00007fff3c5b9648 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   22.331449][  T289] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1b70241ac7
[   22.339259][  T289] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3c5b9700
[   22.347071][  T289] RBP: 00007fff3c5b9700 R08: 0000000000000000 R09: 0000000000000000
[   22.354884][  T289] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff3c5ba770
[   22.362694][  T289] R13: 0000555570d986c0 R14: 00007fff3c5ba770 R15: 0000000000000001
[   22.370505][  T289] ==================================================================
[   22.378399][  T289] Disabling lock debugging due to kernel taint
[   22.384580][  T289] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   22.392182][  T289] #PF: supervisor write access in kernel mode
[   22.398084][  T289] #PF: error_code(0x0002) - not-present page
[   22.403902][  T289] PGD 0 P4D 0 
[   22.407113][  T289] Oops: 0002 [#1] PREEMPT SMP KASAN
[   22.412148][  T289] CPU: 0 PID: 289 Comm: syz-executor305 Tainted: G    B   W         5.10.236-syzkaller #0
[   22.421867][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   22.431766][  T289] RIP: 0010:ihold+0x25/0x60
[   22.436100][  T289] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 81 50 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 e0 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 04 54 b3
[   22.455542][  T289] RSP: 0018:ffffc90000b47c28 EFLAGS: 00010246
[   22.461443][  T289] RAX: ffff88810d084f00 RBX: 0000000000000001 RCX: ffff88810d084f00
[   22.469253][  T289] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   22.477065][  T289] RBP: ffffc90000b47c38 R08: ffffffff813e0e8b R09: 0000000000000003
[   22.484878][  T289] R10: fffffbfff0e11448 R11: dffffc0000000001 R12: dffffc0000000000
[   22.492688][  T289] R13: ffff88810cd94220 R14: 0000000000000000 R15: 0000000000000000
[   22.500503][  T289] FS:  0000555570d97380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.509265][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.515689][  T289] CR2: 0000000000000170 CR3: 000000011c333000 CR4: 00000000003506b0
[   22.523499][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.531308][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.539117][  T289] Call Trace:
[   22.542261][  T289]  vfs_rmdir+0x200/0x3f0
[   22.546460][  T289]  incfs_kill_sb+0x108/0x220
[   22.550877][  T289]  deactivate_locked_super+0xad/0x110
[   22.556084][  T289]  deactivate_super+0xbe/0xf0
[   22.560607][  T289]  cleanup_mnt+0x45c/0x510
[   22.564859][  T289]  __cleanup_mnt+0x19/0x20
[   22.569101][  T289]  task_work_run+0x129/0x190
[   22.573531][  T289]  ptrace_notify+0x29e/0x350
[   22.577955][  T289]  ? do_notify_parent+0xa10/0xa10
[   22.582815][  T289]  ? user_path_at_empty+0x40/0x50
[   22.587674][  T289]  ? __x64_sys_umount+0x122/0x170
[   22.592535][  T289]  ? path_umount+0xea0/0xea0
[   22.596962][  T289]  syscall_exit_to_user_mode+0xf5/0x1a0
[   22.602343][  T289]  do_syscall_64+0x3d/0x40
[   22.606597][  T289]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   22.612322][  T289] RIP: 0033:0x7f1b70241ac7
[   22.616579][  T289] 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
[   22.636015][  T289] RSP: 002b:00007fff3c5b9648 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   22.644263][  T289] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1b70241ac7
[   22.652075][  T289] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3c5b9700
[   22.659885][  T289] RBP: 00007fff3c5b9700 R08: 0000000000000000 R09: 0000000000000000
[   22.667699][  T289] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff3c5ba770
[   22.675507][  T289] R13: 0000555570d986c0 R14: 00007fff3c5ba770 R15: 0000000000000001
[   22.683316][  T289] Modules linked in:
[   22.687059][  T289] CR2: 0000000000000170
[   22.691051][  T289] ---[ end trace 0bd16219243710a7 ]---
[   22.696342][  T289] RIP: 0010:ihold+0x25/0x60
[   22.700682][  T289] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 81 50 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 e0 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 04 54 b3
[   22.720118][  T289] RSP: 0018:ffffc90000b47c28 EFLAGS: 00010246
[   22.726021][  T289] RAX: ffff88810d084f00 RBX: 0000000000000001 RCX: ffff88810d084f00
[   22.733836][  T289] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   22.741645][  T289] RBP: ffffc90000b47c38 R08: ffffffff813e0e8b R09: 0000000000000003
[   22.749455][  T289] R10: fffffbfff0e11448 R11: dffffc0000000001 R12: dffffc0000000000
[   22.757263][  T289] R13: ffff88810cd94220 R14: 0000000000000000 R15: 0000000000000000
[   22.765077][  T289] FS:  0000555570d97380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.773844][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.780264][  T289] CR2: 0000000000000170 CR3: 000000011c333000 CR4: 00000000003506b0
[   22.788078][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.795887][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.803701][  T289] Kernel panic - not syncing: Fatal exception
[   22.809830][  T289] Kernel Offset: disabled
[   22.813954][  T289] Rebooting in 86400 seconds..