./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3790547257

<...>
Warning: Permanently added '10.128.0.40' (ED25519) to the list of known hosts.
execve("./syz-executor3790547257", ["./syz-executor3790547257"], 0x7ffea0955620 /* 10 vars */) = 0
brk(NULL)                               = 0x55556580c000
brk(0x55556580cd00)                     = 0x55556580cd00
arch_prctl(ARCH_SET_FS, 0x55556580c380) = 0
set_tid_address(0x55556580c650)         = 288
set_robust_list(0x55556580c660, 24)     = 0
rseq(0x55556580cca0, 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-executor3790547257", 4096) = 28
getrandom("\x12\x6b\xad\xa1\xd4\x6f\x2c\x62", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55556580cd00
brk(0x55556582dd00)                     = 0x55556582dd00
brk(0x55556582e000)                     = 0x55556582e000
mprotect(0x7fa723f61000, 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.jaXIYM", 0700)       = 0
chmod("./syzkaller.jaXIYM", 0777)       = 0
chdir("./syzkaller.jaXIYM")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556580c650) = 289
./strace-static-x86_64: Process 289 attached
[pid   289] set_robust_list(0x55556580c660, 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
[   25.432902][   T30] audit: type=1400 audit(1750449636.836:64): avc:  denied  { execmem } for  pid=288 comm="syz-executor379" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   25.459364][   T30] audit: type=1400 audit(1750449636.856:65): avc:  denied  { mounton } for  pid=289 comm="syz-executor379" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   289] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[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
[   25.499217][   T30] audit: type=1400 audit(1750449636.896:66): avc:  denied  { mounton } for  pid=289 comm="syz-executor379" path="/root/syzkaller.jaXIYM/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   25.525129][   T30] audit: type=1400 audit(1750449636.906:67): avc:  denied  { mount } for  pid=289 comm="syz-executor379" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   289] chdir("/")                  = 0
[pid   289] mkdir("/dev/gadgetfs", 0777) = 0
[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=0x55556580c650) = 2
./strace-static-x86_64: Process 290 attached
[pid   290] set_robust_list(0x55556580c660, 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] mkdir("./file0", 000)       = 0
[pid   290] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   25.549486][   T30] audit: type=1400 audit(1750449636.936:68): avc:  denied  { mounton } for  pid=289 comm="syz-executor379" path="/root/syzkaller.jaXIYM/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   25.552565][  T289] request_module fs-gadgetfs succeeded, but still no fs?
[pid   290] mount("./file0", "./file0", "incremental-fs", 0, 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=1} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 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, 0x55556580d6f0 /* 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, 0x555565815730 /* 2 entries */, 32768) = 48
[pid   289] getdents64(4, 0x555565815730 /* 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
[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, 0x555565815730 /* 2 entries */, 32768) = 48
[pid   289] getdents64(4, 0x555565815730 /* 0 entries */, 32768) = 0
[pid   289] close(4)                    = 0
[pid   289] rmdir("./0/.index")         = 0
[   25.577987][   T30] audit: type=1400 audit(1750449636.936:69): avc:  denied  { mount } for  pid=289 comm="syz-executor379" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   25.595439][  T290] incfs: ino conflict with backing FS 9
[   25.607528][   T30] audit: type=1400 audit(1750449636.936:70): avc:  denied  { mounton } for  pid=289 comm="syz-executor379" path="/root/syzkaller.jaXIYM/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[   25.640214][  T289] ------------[ cut here ]------------
[   25.645770][  T289] WARNING: CPU: 0 PID: 289 at fs/inode.c:332 drop_nlink+0xc5/0x110
[   25.654153][  T289] Modules linked in:
[   25.654167][   T30] audit: type=1400 audit(1750449636.936:71): avc:  denied  { mounton } for  pid=289 comm="syz-executor379" path="/root/syzkaller.jaXIYM/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14944 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   25.658082][  T289] CPU: 0 PID: 289 Comm: syz-executor379 Not tainted 5.15.185-syzkaller-00339-ge678c93d43cc #0
[   25.686260][   T30] audit: type=1400 audit(1750449636.936:72): avc:  denied  { unmount } for  pid=289 comm="syz-executor379" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   25.696360][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   25.716847][   T30] audit: type=1400 audit(1750449636.956:73): avc:  denied  { mounton } for  pid=289 comm="syz-executor379" path="/dev/gadgetfs" dev="devtmpfs" ino=556 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   25.726887][  T289] RIP: 0010:drop_nlink+0xc5/0x110
[   25.755792][  T289] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 83 3d f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 9b c9 b3 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   25.776923][  T289] RSP: 0018:ffffc90000977ba8 EFLAGS: 00010293
[   25.783245][  T289] RAX: ffffffff81b4dcf5 RBX: ffff888124470bf0 RCX: ffff888105f98000
[   25.792573][  T289] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.801957][  T289] RBP: ffffc90000977bd0 R08: 0000000000000004 R09: 0000000000000003
[   25.810613][  T289] R10: fffff5200012ef64 R11: 1ffff9200012ef64 R12: dffffc0000000000
[   25.818788][  T289] R13: 1ffff1102488e187 R14: ffff888124470c38 R15: 0000000000000000
[   25.827078][  T289] FS:  000055556580c380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   25.836974][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.843983][  T289] CR2: 000056163e1e2748 CR3: 0000000124182000 CR4: 00000000003506b0
[   25.852995][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.861082][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.873237][  T289] Call Trace:
[   25.878243][  T289]  <TASK>
[   25.882897][  T289]  shmem_rmdir+0x5b/0x90
[   25.887481][  T289]  vfs_rmdir+0x313/0x460
[   25.892523][  T289]  incfs_kill_sb+0x105/0x220
[   25.897999][  T289]  deactivate_locked_super+0xa0/0x100
[   25.905632][  T289]  deactivate_super+0xaf/0xe0
[   25.911056][  T289]  cleanup_mnt+0x446/0x500
[   25.916796][  T289]  __cleanup_mnt+0x19/0x20
[   25.921506][  T289]  task_work_run+0x127/0x190
[   25.927417][  T289]  ptrace_notify+0x212/0x250
[   25.933498][  T289]  ? do_notify_parent+0x800/0x800
[   25.940428][  T289]  ? user_path_at_empty+0x161/0x1c0
[   25.946141][  T289]  ? __x64_sys_umount+0x125/0x160
[   25.952122][  T289]  ? path_umount+0xf90/0xf90
[   25.957265][  T289]  syscall_exit_work+0x87/0x160
[   25.962456][  T289]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.969040][  T289]  syscall_exit_to_user_mode+0xd/0x30
[   25.974570][  T289]  do_syscall_64+0x58/0xa0
[   25.979445][  T289]  ? clear_bhb_loop+0x50/0xa0
[   25.988074][  T289]  ? clear_bhb_loop+0x50/0xa0
[   26.009606][  T289]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   26.017241][  T289] RIP: 0033:0x7fa723eeeac7
[   26.022219][  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
[   26.045762][  T289] RSP: 002b:00007ffe61df8948 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   26.054940][  T289] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa723eeeac7
[   26.063256][  T289] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe61df8a00
[   26.072072][  T289] RBP: 00007ffe61df8a00 R08: 0000000000000000 R09: 0000000000000000
[   26.081363][  T289] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe61df9a70
[   26.090662][  T289] R13: 000055556580d6c0 R14: 00007ffe61df9a70 R15: 0000000000000001
[   26.099804][  T289]  </TASK>
[   26.102998][  T289] ---[ end trace 8da24ff54b32d299 ]---
[   26.108488][  T289] ==================================================================
[   26.117621][  T289] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   26.125055][  T289] Write of size 4 at addr 0000000000000170 by task syz-executor379/289
[   26.133668][  T289] 
[   26.136207][  T289] CPU: 0 PID: 289 Comm: syz-executor379 Tainted: G        W         5.15.185-syzkaller-00339-ge678c93d43cc #0
[   26.148016][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   26.158237][  T289] Call Trace:
[   26.162027][  T289]  <TASK>
[   26.165142][  T289]  __dump_stack+0x21/0x30
[   26.169573][  T289]  dump_stack_lvl+0xee/0x150
[   26.174190][  T289]  ? show_regs_print_info+0x20/0x20
[   26.179380][  T289]  ? _raw_spin_lock+0x8e/0xe0
[   26.184273][  T289]  ? _raw_spin_trylock_bh+0x130/0x130
[   26.190620][  T289]  ? ihold+0x20/0x60
[   26.194880][  T289]  kasan_report+0xe7/0x140
[   26.199570][  T289]  ? ihold+0x20/0x60
[   26.203459][  T289]  kasan_check_range+0x280/0x290
[   26.208383][  T289]  __kasan_check_write+0x14/0x20
[   26.213411][  T289]  ihold+0x20/0x60
[   26.217123][  T289]  vfs_rmdir+0x1f0/0x460
[   26.221370][  T289]  incfs_kill_sb+0x105/0x220
[   26.225951][  T289]  deactivate_locked_super+0xa0/0x100
[   26.231327][  T289]  deactivate_super+0xaf/0xe0
[   26.235988][  T289]  cleanup_mnt+0x446/0x500
[   26.240480][  T289]  __cleanup_mnt+0x19/0x20
[   26.245237][  T289]  task_work_run+0x127/0x190
[   26.250232][  T289]  ptrace_notify+0x212/0x250
[   26.255048][  T289]  ? do_notify_parent+0x800/0x800
[   26.260315][  T289]  ? user_path_at_empty+0x161/0x1c0
[   26.265647][  T289]  ? __x64_sys_umount+0x125/0x160
[   26.270681][  T289]  ? path_umount+0xf90/0xf90
[   26.275421][  T289]  syscall_exit_work+0x87/0x160
[   26.280280][  T289]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   26.286734][  T289]  syscall_exit_to_user_mode+0xd/0x30
[   26.292150][  T289]  do_syscall_64+0x58/0xa0
[   26.296768][  T289]  ? clear_bhb_loop+0x50/0xa0
[   26.301451][  T289]  ? clear_bhb_loop+0x50/0xa0
[   26.306653][  T289]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   26.312968][  T289] RIP: 0033:0x7fa723eeeac7
[   26.317417][  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
[   26.337313][  T289] RSP: 002b:00007ffe61df8948 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   26.345910][  T289] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa723eeeac7
[   26.353881][  T289] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe61df8a00
[   26.361939][  T289] RBP: 00007ffe61df8a00 R08: 0000000000000000 R09: 0000000000000000
[   26.369997][  T289] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe61df9a70
[   26.378138][  T289] R13: 000055556580d6c0 R14: 00007ffe61df9a70 R15: 0000000000000001
[   26.386205][  T289]  </TASK>
[   26.389239][  T289] ==================================================================
[   26.398152][  T289] Disabling lock debugging due to kernel taint
[   26.404570][  T289] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   26.412497][  T289] #PF: supervisor write access in kernel mode
[   26.418580][  T289] #PF: error_code(0x0002) - not-present page
[   26.425078][  T289] PGD 0 P4D 0 
[   26.428548][  T289] Oops: 0002 [#1] PREEMPT SMP KASAN
[   26.433917][  T289] CPU: 0 PID: 289 Comm: syz-executor379 Tainted: G    B   W         5.15.185-syzkaller-00339-ge678c93d43cc #0
[   26.445712][  T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   26.456028][  T289] RIP: 0010:ihold+0x26/0x60
[   26.460570][  T289] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 c1 b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 70 35 f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 31
[   26.480273][  T289] RSP: 0018:ffffc90000977be8 EFLAGS: 00010246
[   26.486616][  T289] RAX: ffff888105f98000 RBX: 0000000000000000 RCX: ffff888105f98000
[   26.494600][  T289] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   26.502749][  T289] RBP: ffffc90000977bf8 R08: 0000000000000004 R09: 0000000000000003
[   26.510740][  T289] R10: fffffbfff0e17a4c R11: 1ffffffff0e17a4c R12: 1ffff1102413c738
[   26.519051][  T289] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   26.527037][  T289] FS:  000055556580c380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   26.535976][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.542768][  T289] CR2: 0000000000000170 CR3: 0000000124182000 CR4: 00000000003506b0
[   26.551043][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.559157][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.567762][  T289] Call Trace:
[   26.571084][  T289]  <TASK>
[   26.574016][  T289]  vfs_rmdir+0x1f0/0x460
[   26.578265][  T289]  incfs_kill_sb+0x105/0x220
[   26.582956][  T289]  deactivate_locked_super+0xa0/0x100
[   26.588327][  T289]  deactivate_super+0xaf/0xe0
[   26.593000][  T289]  cleanup_mnt+0x446/0x500
[   26.597412][  T289]  __cleanup_mnt+0x19/0x20
[   26.601831][  T289]  task_work_run+0x127/0x190
[   26.606418][  T289]  ptrace_notify+0x212/0x250
[   26.611007][  T289]  ? do_notify_parent+0x800/0x800
[   26.616037][  T289]  ? user_path_at_empty+0x161/0x1c0
[   26.621345][  T289]  ? __x64_sys_umount+0x125/0x160
[   26.626379][  T289]  ? path_umount+0xf90/0xf90
[   26.630976][  T289]  syscall_exit_work+0x87/0x160
[   26.635836][  T289]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   26.641990][  T289]  syscall_exit_to_user_mode+0xd/0x30
[   26.647361][  T289]  do_syscall_64+0x58/0xa0
[   26.651884][  T289]  ? clear_bhb_loop+0x50/0xa0
[   26.656723][  T289]  ? clear_bhb_loop+0x50/0xa0
[   26.661775][  T289]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   26.667823][  T289] RIP: 0033:0x7fa723eeeac7
[   26.672523][  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
[   26.693018][  T289] RSP: 002b:00007ffe61df8948 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   26.701449][  T289] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa723eeeac7
[   26.709812][  T289] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe61df8a00
[   26.718604][  T289] RBP: 00007ffe61df8a00 R08: 0000000000000000 R09: 0000000000000000
[   26.726637][  T289] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe61df9a70
[   26.735623][  T289] R13: 000055556580d6c0 R14: 00007ffe61df9a70 R15: 0000000000000001
[   26.743835][  T289]  </TASK>
[   26.746974][  T289] Modules linked in:
[   26.751470][  T289] CR2: 0000000000000170
[   26.756325][  T289] ---[ end trace 8da24ff54b32d29a ]---
[   26.763200][  T289] RIP: 0010:ihold+0x26/0x60
[   26.768645][  T289] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 c1 b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 70 35 f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 31
[   26.789117][  T289] RSP: 0018:ffffc90000977be8 EFLAGS: 00010246
[   26.795318][  T289] RAX: ffff888105f98000 RBX: 0000000000000000 RCX: ffff888105f98000
[   26.803578][  T289] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   26.812045][  T289] RBP: ffffc90000977bf8 R08: 0000000000000004 R09: 0000000000000003
[   26.820461][  T289] R10: fffffbfff0e17a4c R11: 1ffffffff0e17a4c R12: 1ffff1102413c738
[   26.828740][  T289] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   26.836830][  T289] FS:  000055556580c380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   26.845781][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.852561][  T289] CR2: 0000000000000170 CR3: 0000000124182000 CR4: 00000000003506b0
[   26.861902][  T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.872258][  T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.881204][  T289] Kernel panic - not syncing: Fatal exception
[   26.888780][  T289] Kernel Offset: disabled
[   26.893390][  T289] Rebooting in 86400 seconds..