./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1636774394

<...>
[    6.635143][   T24] audit: type=1400 audit(1746478996.120:74): avc:  denied  { read } for  pid=184 comm="getty" name="log" dev="sda1" ino=1915 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1

syzkaller
syzkaller login: [   13.535937][   T24] audit: type=1400 audit(1746479003.050:75): avc:  denied  { transition } for  pid=212 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   13.547541][   T24] audit: type=1400 audit(1746479003.050:76): avc:  denied  { noatsecure } for  pid=212 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   13.558559][   T24] audit: type=1400 audit(1746479003.050:77): avc:  denied  { write } for  pid=212 comm="sh" path="pipe:[12956]" dev="pipefs" ino=12956 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[   13.581101][   T24] audit: type=1400 audit(1746479003.050:78): avc:  denied  { rlimitinh } for  pid=212 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   13.599769][   T24] audit: type=1400 audit(1746479003.050:79): avc:  denied  { siginh } for  pid=212 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.0.62' (ED25519) to the list of known hosts.
execve("./syz-executor1636774394", ["./syz-executor1636774394"], 0x7fffa16c1c60 /* 10 vars */) = 0
brk(NULL)                               = 0x555586095000
brk(0x555586095d00)                     = 0x555586095d00
arch_prctl(ARCH_SET_FS, 0x555586095380) = 0
set_tid_address(0x555586095650)         = 272
set_robust_list(0x555586095660, 24)     = 0
rseq(0x555586095ca0, 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-executor1636774394", 4096) = 28
getrandom("\x2d\xfa\xb9\xa7\xf1\x77\xe5\x64", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555586095d00
brk(0x5555860b6d00)                     = 0x5555860b6d00
brk(0x5555860b7000)                     = 0x5555860b7000
mprotect(0x7f60aafbb000, 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.kED0tx", 0700)       = 0
chmod("./syzkaller.kED0tx", 0777)       = 0
chdir("./syzkaller.kED0tx")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555586095650) = 273
./strace-static-x86_64: Process 273 attached
[pid   273] set_robust_list(0x555586095660, 24) = 0
[pid   273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   273] getppid()                   = 0
[pid   273] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   273] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   273] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   273] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   273] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   273] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   273] unshare(CLONE_NEWNS)        = 0
[pid   273] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   273] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   273] unshare(CLONE_NEWCGROUP)    = 0
[pid   273] unshare(CLONE_NEWUTS)       = 0
[pid   273] unshare(CLONE_SYSVSEM)      = 0
[pid   273] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   273] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   273] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   273] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   273] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   273] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   273] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   273] getpid()                    = 1
[pid   273] 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   273] 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   273] unshare(CLONE_NEWNET)       = 0
[pid   273] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   273] write(3, "0 65535", 7)      = 7
[pid   273] close(3)                    = 0
[pid   273] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   273] write(3, "100000", 6)       = 6
[pid   273] close(3)                    = 0
[pid   273] mkdir("./syz-tmp", 0777)    = 0
[pid   273] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   273] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   273] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   273] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   273] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   273] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   273] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   273] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   273] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   273] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   273] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   273] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   273] 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   273] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   273] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   273] 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   273] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   273] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   273] chdir("/")                  = 0
[   23.128766][   T24] audit: type=1400 audit(1746479012.640:80): avc:  denied  { execmem } for  pid=272 comm="syz-executor163" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   23.149323][   T24] audit: type=1400 audit(1746479012.660:81): avc:  denied  { mounton } for  pid=273 comm="syz-executor163" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   273] umount2("./pivot", MNT_DETACH) = 0
[pid   273] chroot("./newroot")         = 0
[pid   273] chdir("/")                  = 0
[pid   273] mkdir("/dev/gadgetfs", 0777) = 0
[pid   273] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   273] mkdir("/dev/binderfs", 0777) = 0
[pid   273] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   273] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   273] mkdir("./0", 0777)          = 0
[pid   273] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555586095650) = 2
./strace-static-x86_64: Process 274 attached
[   23.171325][   T24] audit: type=1400 audit(1746479012.680:82): avc:  denied  { mounton } for  pid=273 comm="syz-executor163" path="/root/syzkaller.kED0tx/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   23.196883][   T24] audit: type=1400 audit(1746479012.680:83): avc:  denied  { mount } for  pid=273 comm="syz-executor163" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   23.198790][  T273] request_module fs-gadgetfs succeeded, but still no fs?
[pid   274] set_robust_list(0x555586095660, 24) = 0
[pid   274] chdir("./0")                = 0
[pid   274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   274] setpgid(0, 0)               = 0
[pid   274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   274] write(3, "1000", 4executing program
)         = 4
[pid   274] close(3)                    = 0
[pid   274] symlink("/dev/binderfs", "./binderfs") = 0
[pid   274] write(1, "executing program\n", 18) = 18
[pid   274] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   274] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   274] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   274] chdir(NULL)                 = -1 EFAULT (Bad address)
[pid   274] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   274] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   274] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   274] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   274] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   274] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   274] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   274] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   274] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   274] exit_group(0)               = ?
[pid   274] +++ exited with 0 +++
[pid   273] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   273] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   273] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   273] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   273] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   273] getdents64(3, 0x5555860966f0 /* 6 entries */, 32768) = 176
[pid   273] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   273] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   273] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   273] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   273] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   273] getdents64(4, 0x55558609e730 /* 2 entries */, 32768) = 48
[pid   273] getdents64(4, 0x55558609e730 /* 0 entries */, 32768) = 0
[pid   273] close(4)                    = 0
[pid   273] rmdir("./0/.incomplete")    = 0
[pid   273] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   273] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   273] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   273] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   273] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   273] getdents64(4, 0x55558609e730 /* 2 entries */, 32768) = 48
[pid   273] getdents64(4, 0x55558609e730 /* 0 entries */, 32768) = 0
[pid   273] close(4)                    = 0
[pid   273] rmdir("./0/.index")         = 0
[   23.219434][   T24] audit: type=1400 audit(1746479012.680:84): avc:  denied  { mounton } for  pid=273 comm="syz-executor163" path="/root/syzkaller.kED0tx/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   23.234524][  T274] incfs: ino conflict with backing FS 9
[   23.252254][   T24] audit: type=1400 audit(1746479012.680:85): avc:  denied  { mount } for  pid=273 comm="syz-executor163" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   23.279758][  T273] ------------[ cut here ]------------
[   23.280541][   T24] audit: type=1400 audit(1746479012.690:86): avc:  denied  { mounton } for  pid=273 comm="syz-executor163" path="/root/syzkaller.kED0tx/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
[   23.285604][  T273] WARNING: CPU: 0 PID: 273 at fs/inode.c:304 drop_nlink+0xc5/0x110
[   23.312126][   T24] audit: type=1400 audit(1746479012.690:87): avc:  denied  { mounton } for  pid=273 comm="syz-executor163" path="/root/syzkaller.kED0tx/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=13078 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   23.320241][  T273] Modules linked in:
[   23.347900][   T24] audit: type=1400 audit(1746479012.690:88): avc:  denied  { unmount } for  pid=273 comm="syz-executor163" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   23.347917][   T24] audit: type=1400 audit(1746479012.720:89): avc:  denied  { mounton } for  pid=273 comm="syz-executor163" path="/dev/gadgetfs" dev="devtmpfs" ino=517 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   23.396020][  T273] 
[   23.398416][  T273] CPU: 0 PID: 273 Comm: syz-executor163 Not tainted 5.10.236-syzkaller-00012-gab07aeb2c93d #0
[   23.408795][  T273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   23.419121][  T273] RIP: 0010:drop_nlink+0xc5/0x110
[   23.424491][  T273] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 a3 23 f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 eb 3a b8 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   23.445442][  T273] RSP: 0018:ffffc90000b37be8 EFLAGS: 00010293
[   23.452375][  T273] RAX: ffffffff81ab51c5 RBX: ffff88810d348400 RCX: ffff88810c0d62c0
[   23.460614][  T273] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.468733][  T273] RBP: ffffc90000b37c10 R08: 0000000000000004 R09: 0000000000000003
[   23.476727][  T273] R10: fffff52000166f6c R11: 1ffff92000166f6c R12: dffffc0000000000
[   23.484748][  T273] R13: 1ffff11021a69089 R14: ffff88810d348448 R15: 0000000000000000
[   23.492867][  T273] FS:  0000555586095380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   23.501932][  T273] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.508617][  T273] CR2: 00005555860a6738 CR3: 000000011d210000 CR4: 00000000003506b0
[   23.516834][  T273] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.524888][  T273] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.532986][  T273] Call Trace:
[   23.536292][  T273]  shmem_rmdir+0x5b/0x90
[   23.540650][  T273]  vfs_rmdir+0x1b3/0x3e0
[   23.544924][  T273]  incfs_kill_sb+0xfe/0x210
[   23.549608][  T273]  deactivate_locked_super+0xa0/0x100
[   23.555111][  T273]  deactivate_super+0xaf/0xe0
[   23.559826][  T273]  cleanup_mnt+0x446/0x500
[   23.564305][  T273]  __cleanup_mnt+0x19/0x20
[   23.568751][  T273]  task_work_run+0x127/0x190
[   23.573360][  T273]  ptrace_notify+0x212/0x250
[   23.578038][  T273]  ? do_notify_parent+0x7e0/0x7e0
[   23.583314][  T273]  ? user_path_at_empty+0x43/0x50
[   23.588376][  T273]  ? __x64_sys_umount+0x125/0x160
[   23.593480][  T273]  ? path_umount+0xe60/0xe60
[   23.598069][  T273]  syscall_exit_work+0x6e/0x140
[   23.602956][  T273]  syscall_exit_to_user_mode+0x5b/0x90
[   23.608428][  T273]  do_syscall_64+0x3d/0x40
[   23.612910][  T273]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   23.619113][  T273] RIP: 0033:0x7f60aaf48ac7
[   23.623611][  T273] 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
[   23.643698][  T273] RSP: 002b:00007ffc88e94578 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   23.652390][  T273] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f60aaf48ac7
[   23.660390][  T273] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc88e94630
[   23.668831][  T273] RBP: 00007ffc88e94630 R08: 0000000000000000 R09: 0000000000000000
[   23.676964][  T273] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc88e956a0
[   23.685416][  T273] R13: 00005555860966c0 R14: 00007ffc88e956a0 R15: 0000000000000001
[   23.693518][  T273] ---[ end trace 183f8da5066c32cc ]---
[   23.699001][  T273] ==================================================================
[   23.707197][  T273] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   23.713460][  T273] Write of size 4 at addr 0000000000000170 by task syz-executor163/273
[   23.721685][  T273] 
[   23.724005][  T273] CPU: 0 PID: 273 Comm: syz-executor163 Tainted: G        W         5.10.236-syzkaller-00012-gab07aeb2c93d #0
[   23.735610][  T273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   23.746188][  T273] Call Trace:
[   23.749822][  T273]  __dump_stack+0x21/0x24
[   23.754145][  T273]  dump_stack_lvl+0x169/0x1d8
[   23.759030][  T273]  ? thaw_kernel_threads+0x220/0x220
[   23.764313][  T273]  ? show_regs_print_info+0x18/0x18
[   23.769685][  T273]  ? _raw_spin_lock+0x8e/0xe0
[   23.774370][  T273]  ? _raw_spin_trylock_bh+0x130/0x130
[   23.779738][  T273]  ? ihold+0x20/0x60
[   23.783646][  T273]  kasan_report+0xd8/0x130
[   23.788081][  T273]  ? ihold+0x20/0x60
[   23.791960][  T273]  kasan_check_range+0x280/0x290
[   23.796922][  T273]  __kasan_check_write+0x14/0x20
[   23.801842][  T273]  ihold+0x20/0x60
[   23.805593][  T273]  vfs_rmdir+0x247/0x3e0
[   23.809915][  T273]  incfs_kill_sb+0xfe/0x210
[   23.814576][  T273]  deactivate_locked_super+0xa0/0x100
[   23.820016][  T273]  deactivate_super+0xaf/0xe0
[   23.824679][  T273]  cleanup_mnt+0x446/0x500
[   23.829072][  T273]  __cleanup_mnt+0x19/0x20
[   23.833464][  T273]  task_work_run+0x127/0x190
[   23.838032][  T273]  ptrace_notify+0x212/0x250
[   23.842602][  T273]  ? do_notify_parent+0x7e0/0x7e0
[   23.847691][  T273]  ? user_path_at_empty+0x43/0x50
[   23.852712][  T273]  ? __x64_sys_umount+0x125/0x160
[   23.857714][  T273]  ? path_umount+0xe60/0xe60
[   23.862395][  T273]  syscall_exit_work+0x6e/0x140
[   23.867243][  T273]  syscall_exit_to_user_mode+0x5b/0x90
[   23.872679][  T273]  do_syscall_64+0x3d/0x40
[   23.877088][  T273]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   23.883072][  T273] RIP: 0033:0x7f60aaf48ac7
[   23.887484][  T273] 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
[   23.907071][  T273] RSP: 002b:00007ffc88e94578 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   23.915467][  T273] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f60aaf48ac7
[   23.923437][  T273] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc88e94630
[   23.931884][  T273] RBP: 00007ffc88e94630 R08: 0000000000000000 R09: 0000000000000000
[   23.939868][  T273] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc88e956a0
[   23.947842][  T273] R13: 00005555860966c0 R14: 00007ffc88e956a0 R15: 0000000000000001
[   23.955931][  T273] ==================================================================
[   23.964158][  T273] Disabling lock debugging due to kernel taint
[   23.970413][  T273] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   23.978450][  T273] #PF: supervisor write access in kernel mode
[   23.984796][  T273] #PF: error_code(0x0002) - not-present page
[   23.990856][  T273] PGD 0 P4D 0 
[   23.994237][  T273] Oops: 0002 [#1] PREEMPT SMP KASAN
[   23.999542][  T273] CPU: 0 PID: 273 Comm: syz-executor163 Tainted: G    B   W         5.10.236-syzkaller-00012-gab07aeb2c93d #0
[   24.011515][  T273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   24.021592][  T273] RIP: 0010:ihold+0x26/0x60
[   24.026167][  T273] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 01 33 b8 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 90 1b 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 81
[   24.046227][  T273] RSP: 0018:ffffc90000b37c28 EFLAGS: 00010246
[   24.052291][  T273] RAX: ffff88810c0d6200 RBX: 0000000000000000 RCX: 0000000000000286
[   24.060510][  T273] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   24.068609][  T273] RBP: ffffc90000b37c38 R08: 0000000000000004 R09: 0000000000000003
[   24.076593][  T273] R10: fffffbfff0d8e448 R11: 1ffffffff0d8e448 R12: 1ffff110212200f4
[   24.084688][  T273] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   24.092661][  T273] FS:  0000555586095380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.101687][  T273] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.108389][  T273] CR2: 0000000000000170 CR3: 000000011d210000 CR4: 00000000003506b0
[   24.116368][  T273] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.124514][  T273] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.132511][  T273] Call Trace:
[   24.135804][  T273]  vfs_rmdir+0x247/0x3e0
[   24.140046][  T273]  incfs_kill_sb+0xfe/0x210
[   24.144548][  T273]  deactivate_locked_super+0xa0/0x100
[   24.149915][  T273]  deactivate_super+0xaf/0xe0
[   24.154604][  T273]  cleanup_mnt+0x446/0x500
[   24.159301][  T273]  __cleanup_mnt+0x19/0x20
[   24.163748][  T273]  task_work_run+0x127/0x190
[   24.168424][  T273]  ptrace_notify+0x212/0x250
[   24.173016][  T273]  ? do_notify_parent+0x7e0/0x7e0
[   24.178470][  T273]  ? user_path_at_empty+0x43/0x50
[   24.183519][  T273]  ? __x64_sys_umount+0x125/0x160
[   24.188539][  T273]  ? path_umount+0xe60/0xe60
[   24.193143][  T273]  syscall_exit_work+0x6e/0x140
[   24.197990][  T273]  syscall_exit_to_user_mode+0x5b/0x90
[   24.203533][  T273]  do_syscall_64+0x3d/0x40
[   24.207952][  T273]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.213840][  T273] RIP: 0033:0x7f60aaf48ac7
[   24.218277][  T273] 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
[   24.238256][  T273] RSP: 002b:00007ffc88e94578 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.246675][  T273] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f60aaf48ac7
[   24.254860][  T273] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc88e94630
[   24.262830][  T273] RBP: 00007ffc88e94630 R08: 0000000000000000 R09: 0000000000000000
[   24.270827][  T273] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc88e956a0
[   24.278824][  T273] R13: 00005555860966c0 R14: 00007ffc88e956a0 R15: 0000000000000001
[   24.286879][  T273] Modules linked in:
[   24.290776][  T273] CR2: 0000000000000170
[   24.294936][  T273] ---[ end trace 183f8da5066c32cd ]---
[   24.300404][  T273] RIP: 0010:ihold+0x26/0x60
[   24.305163][  T273] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 01 33 b8 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 90 1b 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 81
[   24.324870][  T273] RSP: 0018:ffffc90000b37c28 EFLAGS: 00010246
[   24.331110][  T273] RAX: ffff88810c0d6200 RBX: 0000000000000000 RCX: 0000000000000286
[   24.339220][  T273] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   24.347281][  T273] RBP: ffffc90000b37c38 R08: 0000000000000004 R09: 0000000000000003
[   24.355284][  T273] R10: fffffbfff0d8e448 R11: 1ffffffff0d8e448 R12: 1ffff110212200f4
[   24.363261][  T273] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   24.371338][  T273] FS:  0000555586095380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.380468][  T273] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.387051][  T273] CR2: 0000000000000170 CR3: 000000011d210000 CR4: 00000000003506b0
[   24.395202][  T273] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.403172][  T273] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.411141][  T273] Kernel panic - not syncing: Fatal exception
[   24.417592][  T273] Kernel Offset: disabled
[   24.421919][  T273] Rebooting in 86400 seconds..