./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2037061425

<...>
Warning: Permanently added '10.128.0.173' (ED25519) to the list of known hosts.
execve("./syz-executor2037061425", ["./syz-executor2037061425"], 0x7ffd951261a0 /* 10 vars */) = 0
brk(NULL)                               = 0x555566265000
brk(0x555566265e00)                     = 0x555566265e00
arch_prctl(ARCH_SET_FS, 0x555566265480) = 0
set_tid_address(0x555566265750)         = 307
set_robust_list(0x555566265760, 24)     = 0
rseq(0x555566265da0, 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-executor2037061425", 4096) = 28
getrandom("\xbb\xe3\x06\x39\x83\xe6\x1f\xbb", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555566265e00
brk(0x555566286e00)                     = 0x555566286e00
brk(0x555566287000)                     = 0x555566287000
mprotect(0x7f5dfd7ab000, 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
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f5dfd701da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f5dfd709b90}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f5dfd701da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f5dfd709b90}, NULL, 8) = 0
mkdir("./syzkaller.D2JWXC", 0700)       = 0
chmod("./syzkaller.D2JWXC", 0777)       = 0
chdir("./syzkaller.D2JWXC")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566265750) = 308
./strace-static-x86_64: Process 308 attached
[pid   308] set_robust_list(0x555566265760, 24) = 0
[pid   308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   308] getppid()                   = 0
[pid   308] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   308] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   308] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   308] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   308] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   308] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   308] unshare(CLONE_NEWNS)        = 0
[pid   308] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   308] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   308] unshare(CLONE_NEWCGROUP)    = 0
[pid   308] unshare(CLONE_NEWUTS)       = 0
[pid   308] unshare(CLONE_SYSVSEM)      = 0
[pid   308] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   308] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   308] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   308] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   308] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   308] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   308] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   308] getpid()                    = 1
[pid   308] 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   308] 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
[   40.580729][   T30] audit: type=1400 audit(1735563930.473:66): avc:  denied  { execmem } for  pid=307 comm="syz-executor203" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[pid   308] unshare(CLONE_NEWNET)       = 0
[pid   308] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   308] write(3, "0 65535", 7)      = 7
[pid   308] close(3)                    = 0
[pid   308] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   308] write(3, "100000", 6)       = 6
[pid   308] close(3)                    = 0
[pid   308] mkdir("./syz-tmp", 0777)    = 0
[pid   308] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[   40.612572][   T30] audit: type=1400 audit(1735563930.503:67): avc:  denied  { mounton } for  pid=308 comm="syz-executor203" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   308] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   308] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   308] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   308] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   308] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   308] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   308] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   308] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   308] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   308] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   308] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   308] 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   308] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   308] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   308] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   308] chdir("/")                  = 0
[pid   308] umount2("./pivot", MNT_DETACH) = 0
[pid   308] chroot("./newroot")         = 0
[pid   308] chdir("/")                  = 0
[pid   308] mkdir("/dev/gadgetfs", 0777) = 0
[   40.664399][   T30] audit: type=1400 audit(1735563930.553:68): avc:  denied  { mounton } for  pid=308 comm="syz-executor203" path="/root/syzkaller.D2JWXC/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   40.689410][   T30] audit: type=1400 audit(1735563930.553:69): avc:  denied  { mount } for  pid=308 comm="syz-executor203" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   308] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   308] mkdir("/dev/binderfs", 0777) = 0
[pid   308] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   308] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   308] mkdir("./0", 0777)          = 0
[pid   308] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   308] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   308] close(3)                    = 0
[pid   308] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566265750) = 2
./strace-static-x86_64: Process 309 attached
[pid   309] set_robust_list(0x555566265760, 24) = 0
[pid   309] chdir("./0")                = 0
[pid   309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   309] setpgid(0, 0)               = 0
[pid   309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   309] write(3, "1000", 4)         = 4
[pid   309] close(3)                    = 0
[pid   309] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid   309] write(1, "executing program\n", 18) = 18
[pid   309] mkdir("./file0", 0777)      = 0
[pid   309] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   309] mount(NULL, NULL, NULL, 0, NULL) = -1 EFAULT (Bad address)
[pid   309] chdir(NULL)                 = -1 EFAULT (Bad address)
[pid   309] mkdir(NULL, 000)            = -1 EFAULT (Bad address)
[pid   309] mount("./file0", "./file0", "incremental-fs", MS_NOEXEC|MS_NOATIME|MS_STRICTATIME, NULL) = 0
[pid   309] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   40.694211][  T308] request_module fs-gadgetfs succeeded, but still no fs?
[   40.718956][   T30] audit: type=1400 audit(1735563930.553:70): avc:  denied  { mounton } for  pid=308 comm="syz-executor203" path="/root/syzkaller.D2JWXC/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
[   40.743956][  T309] =======================================================
[   40.743956][  T309] WARNING: The mand mount option has been deprecated and
[   40.743956][  T309]          and is ignored by this kernel. Remove the mand
[pid   309] mount("./file0/file0", "./file0/file0", NULL, MS_NOSUID|MS_NOEXEC|MS_SYNCHRONOUS|MS_MANDLOCK|MS_BIND|MS_POSIXACL|MS_I_VERSION, NULL) = 0
[pid   309] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   309] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   309] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   309] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   309] close(7)                    = -1 EBADF (Bad file descriptor)
[   40.743956][  T309]          option from the mount to silence this warning.
[   40.743956][  T309] =======================================================
[   40.778948][   T30] audit: type=1400 audit(1735563930.553:71): avc:  denied  { mount } for  pid=308 comm="syz-executor203" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[pid   309] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   309] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   309] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   309] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   309] exit_group(0)               = ?
[pid   309] +++ exited with 0 +++
[pid   308] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   308] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   308] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   308] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   308] getdents64(3, 0x5555662667f0 /* 4 entries */, 32768) = 112
[pid   308] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   308] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   308] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   308] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   308] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   308] getdents64(4, 0x55556626e830 /* 4 entries */, 32768) = 112
[   40.779028][   T30] audit: type=1400 audit(1735563930.553:72): avc:  denied  { mounton } for  pid=308 comm="syz-executor203" path="/root/syzkaller.D2JWXC/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
[   40.828385][   T30] audit: type=1400 audit(1735563930.553:73): avc:  denied  { mounton } for  pid=308 comm="syz-executor203" path="/root/syzkaller.D2JWXC/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=459 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[pid   308] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   308] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] newfstatat(AT_FDCWD, "./0/file0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   308] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] openat(AT_FDCWD, "./0/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   308] newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   308] getdents64(5, 0x555566276870 /* 4 entries */, 32768) = 112
[pid   308] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] newfstatat(AT_FDCWD, "./0/file0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   308] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] openat(AT_FDCWD, "./0/file0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   308] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   308] getdents64(6, 0x55556627e8b0 /* 2 entries */, 32768) = 48
[pid   308] getdents64(6, 0x55556627e8b0 /* 0 entries */, 32768) = 0
[pid   308] close(6)                    = 0
[pid   308] rmdir("./0/file0/file0/.incomplete") = 0
[pid   308] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] newfstatat(AT_FDCWD, "./0/file0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   308] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] openat(AT_FDCWD, "./0/file0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   308] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   308] getdents64(6, 0x55556627e8b0 /* 2 entries */, 32768) = 48
[pid   308] getdents64(6, 0x55556627e8b0 /* 0 entries */, 32768) = 0
[pid   308] close(6)                    = 0
[pid   308] rmdir("./0/file0/file0/.index") = 0
[pid   308] getdents64(5, 0x555566276870 /* 0 entries */, 32768) = 0
[pid   308] close(5)                    = 0
[pid   308] rmdir("./0/file0/file0")    = -1 EBUSY (Device or resource busy)
[pid   308] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   308] exit_group(1)               = ?
[   40.856063][   T30] audit: type=1400 audit(1735563930.553:74): avc:  denied  { unmount } for  pid=308 comm="syz-executor203" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   40.876282][   T30] audit: type=1400 audit(1735563930.573:75): avc:  denied  { mounton } for  pid=308 comm="syz-executor203" path="/dev/gadgetfs" dev="devtmpfs" ino=514 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   40.899968][  T308] ------------[ cut here ]------------
[   40.905816][  T308] WARNING: CPU: 1 PID: 308 at fs/inode.c:307 drop_nlink+0xc1/0x110
[   40.913769][  T308] Modules linked in:
[   40.917537][  T308] CPU: 1 PID: 308 Comm: syz-executor203 Not tainted 5.15.173-syzkaller-00161-gb4bd207b0380 #0
[   40.927658][  T308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   40.937567][  T308] RIP: 0010:drop_nlink+0xc1/0x110
[   40.942749][  T308] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 97 f4 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 4f 9a ae ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   40.962339][  T308] RSP: 0018:ffffc900009a7b08 EFLAGS: 00010293
[   40.968298][  T308] RAX: ffffffff81c1cc61 RBX: 0000000000000000 RCX: ffff88810d2ba780
[   40.976128][  T308] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   40.983974][  T308] RBP: ffffc900009a7b30 R08: ffffffff81c1cbe4 R09: 0000000000000003
[   40.991753][  T308] R10: fffff52000134f50 R11: dffffc0000000001 R12: dffffc0000000000
[   40.999866][  T308] R13: 1ffff11021a61655 R14: ffff88810d30b260 R15: ffff88810d30b2a8
[   41.007746][  T308] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   41.016581][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.023008][  T308] CR2: 00007f5dfd7b21d0 CR3: 00000001191da000 CR4: 00000000003506b0
[   41.030809][  T308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.038597][  T308] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.046493][  T308] Call Trace:
[   41.049532][  T308]  <TASK>
[   41.052350][  T308]  ? show_regs+0x58/0x60
[   41.056389][  T308]  ? __warn+0x160/0x2f0
[   41.060427][  T308]  ? drop_nlink+0xc1/0x110
[   41.064666][  T308]  ? report_bug+0x3d9/0x5b0
[   41.069015][  T308]  ? drop_nlink+0xc1/0x110
[   41.073405][  T308]  ? handle_bug+0x41/0x70
[   41.077561][  T308]  ? exc_invalid_op+0x1b/0x50
[   41.082065][  T308]  ? asm_exc_invalid_op+0x1b/0x20
[   41.086884][  T308]  ? drop_nlink+0x44/0x110
[   41.091166][  T308]  ? drop_nlink+0xc1/0x110
[   41.095389][  T308]  ? drop_nlink+0xc1/0x110
[   41.099642][  T308]  ? drop_nlink+0xc1/0x110
[   41.103933][  T308]  shmem_rmdir+0x59/0x90
[   41.108001][  T308]  vfs_rmdir+0x324/0x470
[   41.112103][  T308]  incfs_kill_sb+0x113/0x230
[   41.116481][  T308]  deactivate_locked_super+0xad/0x110
[   41.121742][  T308]  deactivate_super+0xbe/0xf0
[   41.126309][  T308]  cleanup_mnt+0x45c/0x510
[   41.130607][  T308]  __cleanup_mnt+0x19/0x20
[   41.134811][  T308]  task_work_run+0x129/0x190
[   41.139242][  T308]  do_exit+0xc48/0x2ca0
[   41.143275][  T308]  ? put_task_struct+0x80/0x80
[   41.147831][  T308]  ? _raw_spin_unlock_irq+0x4e/0x70
[   41.153013][  T308]  ? ptrace_notify+0x24c/0x350
[   41.157586][  T308]  ? do_notify_parent+0xa30/0xa30
[   41.162475][  T308]  do_group_exit+0x141/0x310
[   41.167080][  T308]  __x64_sys_exit_group+0x3f/0x40
[   41.171963][  T308]  x64_sys_call+0x610/0x9a0
[   41.176304][  T308]  do_syscall_64+0x3b/0xb0
[   41.180559][  T308]  ? clear_bhb_loop+0x35/0x90
[   41.185033][  T308]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   41.190791][  T308] RIP: 0033:0x7f5dfd734f09
[   41.195015][  T308] Code: Unable to access opcode bytes at RIP 0x7f5dfd734edf.
[   41.202695][  T308] RSP: 002b:00007fffd689c938 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   41.211147][  T308] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5dfd734f09
[   41.218995][  T308] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   41.226916][  T308] RBP: 00007f5dfd7b1370 R08: ffffffffffffffb8 R09: 0000000000000000
[   41.234856][  T308] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f5dfd7b1370
[   41.242838][  T308] R13: 0000000000000000 R14: 00007f5dfd7b1dc0 R15: 00007f5dfd702c90
[   41.250756][  T308]  </TASK>
[   41.253567][  T308] ---[ end trace 4ed110ad5e500901 ]---
[   41.258923][  T308] ==================================================================
[   41.266740][  T308] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   41.272827][  T308] Write of size 4 at addr 0000000000000170 by task syz-executor203/308
[   41.280889][  T308] 
[   41.283069][  T308] CPU: 1 PID: 308 Comm: syz-executor203 Tainted: G        W         5.15.173-syzkaller-00161-gb4bd207b0380 #0
[   41.294542][  T308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   41.304419][  T308] Call Trace:
[   41.307539][  T308]  <TASK>
[   41.310318][  T308]  dump_stack_lvl+0x151/0x1c0
[   41.314843][  T308]  ? io_uring_drop_tctx_refs+0x190/0x190
[   41.320390][  T308]  ? _raw_spin_lock+0xa4/0x1b0
[   41.324987][  T308]  ? _raw_spin_trylock_bh+0x190/0x190
[   41.330217][  T308]  kasan_report+0x16f/0x1c0
[   41.334536][  T308]  ? ihold+0x20/0x60
[   41.338282][  T308]  ? ihold+0x20/0x60
[   41.341998][  T308]  kasan_check_range+0x293/0x2a0
[   41.346808][  T308]  __kasan_check_write+0x14/0x20
[   41.351545][  T308]  ihold+0x20/0x60
[   41.355107][  T308]  vfs_rmdir+0x201/0x470
[   41.359186][  T308]  incfs_kill_sb+0x113/0x230
[   41.363614][  T308]  deactivate_locked_super+0xad/0x110
[   41.368821][  T308]  deactivate_super+0xbe/0xf0
[   41.373387][  T308]  cleanup_mnt+0x45c/0x510
[   41.377588][  T308]  __cleanup_mnt+0x19/0x20
[   41.381839][  T308]  task_work_run+0x129/0x190
[   41.386273][  T308]  do_exit+0xc48/0x2ca0
[   41.390282][  T308]  ? put_task_struct+0x80/0x80
[   41.394859][  T308]  ? _raw_spin_unlock_irq+0x4e/0x70
[   41.399898][  T308]  ? ptrace_notify+0x24c/0x350
[   41.404501][  T308]  ? do_notify_parent+0xa30/0xa30
[   41.409360][  T308]  do_group_exit+0x141/0x310
[   41.413789][  T308]  __x64_sys_exit_group+0x3f/0x40
[   41.418648][  T308]  x64_sys_call+0x610/0x9a0
[   41.422984][  T308]  do_syscall_64+0x3b/0xb0
[   41.427238][  T308]  ? clear_bhb_loop+0x35/0x90
[   41.431754][  T308]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   41.437481][  T308] RIP: 0033:0x7f5dfd734f09
[   41.441731][  T308] Code: Unable to access opcode bytes at RIP 0x7f5dfd734edf.
[   41.448954][  T308] RSP: 002b:00007fffd689c938 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   41.457197][  T308] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5dfd734f09
[   41.464995][  T308] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   41.472808][  T308] RBP: 00007f5dfd7b1370 R08: ffffffffffffffb8 R09: 0000000000000000
[   41.480619][  T308] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f5dfd7b1370
[   41.488431][  T308] R13: 0000000000000000 R14: 00007f5dfd7b1dc0 R15: 00007f5dfd702c90
[   41.496259][  T308]  </TASK>
[   41.499111][  T308] ==================================================================
[   41.507010][  T308] Disabling lock debugging due to kernel taint
[   41.513585][  T308] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   41.521245][  T308] #PF: supervisor write access in kernel mode
[   41.527141][  T308] #PF: error_code(0x0002) - not-present page
[   41.532955][  T308] PGD 0 P4D 0 
[   41.536163][  T308] Oops: 0002 [#1] PREEMPT SMP KASAN
[   41.541200][  T308] CPU: 1 PID: 308 Comm: syz-executor203 Tainted: G    B   W         5.15.173-syzkaller-00161-gb4bd207b0380 #0
[   41.552658][  T308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   41.562569][  T308] RIP: 0010:ihold+0x25/0x60
[   41.566891][  T308] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 61 92 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 80 ec 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 e4 95 ae
[   41.586337][  T308] RSP: 0018:ffffc900009a7b48 EFLAGS: 00010246
[   41.592237][  T308] RAX: ffff88810d2ba700 RBX: 0000000000000001 RCX: ffff88810d2ba780
[   41.600054][  T308] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   41.607862][  T308] RBP: ffffc900009a7b58 R08: ffffffff8141a43b R09: 0000000000000003
[   41.615674][  T308] R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: dffffc0000000000
[   41.623487][  T308] R13: ffff888120a54660 R14: 0000000000000000 R15: 1ffff1102414a8d2
[   41.631301][  T308] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   41.640066][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.646501][  T308] CR2: 0000000000000170 CR3: 000000010c4c3000 CR4: 00000000003506a0
[   41.654302][  T308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.662134][  T308] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.669924][  T308] Call Trace:
[   41.673051][  T308]  <TASK>
[   41.675828][  T308]  ? __die_body+0x62/0xb0
[   41.679994][  T308]  ? __die+0x7e/0x90
[   41.683726][  T308]  ? page_fault_oops+0x7f9/0xa90
[   41.688498][  T308]  ? _raw_spin_unlock+0x4d/0x70
[   41.693188][  T308]  ? kernelmode_fixup_or_oops+0xd0/0xd0
[   41.698568][  T308]  ? __schedule+0xcd4/0x1590
[   41.703004][  T308]  ? exc_page_fault+0x510/0x7f0
[   41.707698][  T308]  ? asm_exc_page_fault+0x27/0x30
[   41.712547][  T308]  ? check_panic_on_warn+0x5b/0xb0
[   41.717492][  T308]  ? ihold+0x25/0x60
[   41.721225][  T308]  ? ihold+0x20/0x60
[   41.724956][  T308]  vfs_rmdir+0x201/0x470
[   41.729038][  T308]  incfs_kill_sb+0x113/0x230
[   41.733463][  T308]  deactivate_locked_super+0xad/0x110
[   41.738671][  T308]  deactivate_super+0xbe/0xf0
[   41.743187][  T308]  cleanup_mnt+0x45c/0x510
[   41.747441][  T308]  __cleanup_mnt+0x19/0x20
[   41.751690][  T308]  task_work_run+0x129/0x190
[   41.756121][  T308]  do_exit+0xc48/0x2ca0
[   41.760115][  T308]  ? put_task_struct+0x80/0x80
[   41.764707][  T308]  ? _raw_spin_unlock_irq+0x4e/0x70
[   41.769747][  T308]  ? ptrace_notify+0x24c/0x350
[   41.774347][  T308]  ? do_notify_parent+0xa30/0xa30
[   41.779208][  T308]  do_group_exit+0x141/0x310
[   41.783636][  T308]  __x64_sys_exit_group+0x3f/0x40
[   41.788494][  T308]  x64_sys_call+0x610/0x9a0
[   41.792831][  T308]  do_syscall_64+0x3b/0xb0
[   41.797084][  T308]  ? clear_bhb_loop+0x35/0x90
[   41.801600][  T308]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   41.807329][  T308] RIP: 0033:0x7f5dfd734f09
[   41.811583][  T308] Code: Unable to access opcode bytes at RIP 0x7f5dfd734edf.
[   41.818792][  T308] RSP: 002b:00007fffd689c938 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   41.827035][  T308] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5dfd734f09
[   41.834843][  T308] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   41.842654][  T308] RBP: 00007f5dfd7b1370 R08: ffffffffffffffb8 R09: 0000000000000000
[   41.850467][  T308] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f5dfd7b1370
[   41.858277][  T308] R13: 0000000000000000 R14: 00007f5dfd7b1dc0 R15: 00007f5dfd702c90
[   41.866099][  T308]  </TASK>
[   41.868955][  T308] Modules linked in:
[   41.872705][  T308] CR2: 0000000000000170
[   41.876694][  T308] ---[ end trace 4ed110ad5e500902 ]---
[   41.881974][  T308] RIP: 0010:ihold+0x25/0x60
[   41.886314][  T308] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 61 92 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 80 ec 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 e4 95 ae
[   41.905762][  T308] RSP: 0018:ffffc900009a7b48 EFLAGS: 00010246
[   41.911661][  T308] RAX: ffff88810d2ba700 RBX: 0000000000000001 RCX: ffff88810d2ba780
[   41.919475][  T308] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   41.927311][  T308] RBP: ffffc900009a7b58 R08: ffffffff8141a43b R09: 0000000000000003
[   41.935099][  T308] R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: dffffc0000000000
[   41.942913][  T308] R13: ffff888120a54660 R14: 0000000000000000 R15: 1ffff1102414a8d2
[   41.950725][  T308] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   41.959490][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.965926][  T308] CR2: 0000000000000170 CR3: 000000010c4c3000 CR4: 00000000003506a0
[   41.973725][  T308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.981537][  T308] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.989356][  T308] Kernel panic - not syncing: Fatal exception
[   41.995483][  T308] Kernel Offset: disabled
[   41.999640][  T308] Rebooting in 86400 seconds..