./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1348207872

<...>
[    3.205360][   T24] audit: type=1400 audit(1731883289.259:9): avc:  denied  { append open } for  pid=77 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[    3.208436][   T24] audit: type=1400 audit(1731883289.259:10): avc:  denied  { getattr } for  pid=77 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[    3.393782][   T94] udevd[94]: starting version 3.2.11
[    3.460927][   T95] udevd[95]: starting eudev-3.2.11
[   10.936067][   T24] kauditd_printk_skb: 50 callbacks suppressed
[   10.936076][   T24] audit: type=1400 audit(1731883296.999:61): avc:  denied  { transition } for  pid=216 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
[   10.942139][   T24] audit: type=1400 audit(1731883297.009:62): avc:  denied  { noatsecure } for  pid=216 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   10.945878][   T24] audit: type=1400 audit(1731883297.009:63): avc:  denied  { write } for  pid=216 comm="sh" path="pipe:[14519]" dev="pipefs" ino=14519 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[   10.949564][   T24] audit: type=1400 audit(1731883297.009:64): avc:  denied  { rlimitinh } for  pid=216 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   10.952624][   T24] audit: type=1400 audit(1731883297.009:65): avc:  denied  { siginh } for  pid=216 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.1.126' (ED25519) to the list of known hosts.
execve("./syz-executor1348207872", ["./syz-executor1348207872"], 0x7ffe5d642f70 /* 10 vars */) = 0
brk(NULL)                               = 0x55555b4b8000
brk(0x55555b4b8d00)                     = 0x55555b4b8d00
arch_prctl(ARCH_SET_FS, 0x55555b4b8380) = 0
set_tid_address(0x55555b4b8650)         = 286
set_robust_list(0x55555b4b8660, 24)     = 0
rseq(0x55555b4b8ca0, 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-executor1348207872", 4096) = 28
getrandom("\xfa\xbc\xb6\x0c\x36\x64\x6b\x2f", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555b4b8d00
brk(0x55555b4d9d00)                     = 0x55555b4d9d00
brk(0x55555b4da000)                     = 0x55555b4da000
mprotect(0x7fbd806ee000, 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
mkdir("./syzkaller.BI5BCX", 0700)       = 0
chmod("./syzkaller.BI5BCX", 0777)       = 0
chdir("./syzkaller.BI5BCX")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555b4b8650) = 287
./strace-static-x86_64: Process 287 attached
[pid   287] set_robust_list(0x55555b4b8660, 24) = 0
[pid   287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   287] getppid()                   = 0
[pid   287] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   287] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   287] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   287] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   287] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   287] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   287] unshare(CLONE_NEWNS)        = 0
[pid   287] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   287] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   287] unshare(CLONE_NEWCGROUP)    = 0
[pid   287] unshare(CLONE_NEWUTS)       = 0
[pid   287] unshare(CLONE_SYSVSEM)      = 0
[pid   287] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   287] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   287] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   287] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   287] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   287] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   287] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   287] getpid()                    = 1
[pid   287] 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   287] 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   287] unshare(CLONE_NEWNET)       = 0
[pid   287] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   287] write(3, "0 65535", 7)      = 7
[pid   287] close(3)                    = 0
[pid   287] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   287] write(3, "100000", 6)       = 6
[pid   287] close(3)                    = 0
[pid   287] mkdir("./syz-tmp", 0777)    = 0
[pid   287] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   287] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   287] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   287] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   287] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   287] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   287] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   287] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   287] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   287] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   287] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   287] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   287] 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   287] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   287] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   287] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   287] chdir("/")                  = 0
[pid   287] umount2("./pivot", MNT_DETACH) = 0
[pid   287] chroot("./newroot")         = 0
[pid   287] chdir("/")                  = 0
[pid   287] mkdir("/dev/binderfs", 0777) = 0
[pid   287] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   287] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   287] mkdir("./0", 0777)          = 0
[pid   287] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555b4b8650) = 2
./strace-static-x86_64: Process 288 attached
[pid   288] set_robust_list(0x55555b4b8660, 24) = 0
[pid   288] chdir("./0")                = 0
[pid   288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   288] setpgid(0, 0)               = 0
[pid   288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   288] write(3, "1000", 4)         = 4
[pid   288] close(3)                    = 0
[pid   288] symlink("/dev/binderfs", "./binderfs") = 0
[pid   288] write(1, "executing program\n", 18executing program
) = 18
[pid   288] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   288] mount(".", "./file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   19.644267][   T24] audit: type=1400 audit(1731883305.709:66): avc:  denied  { execmem } for  pid=286 comm="syz-executor134" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   19.650328][   T24] audit: type=1400 audit(1731883305.719:67): avc:  denied  { mounton } for  pid=287 comm="syz-executor134" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   19.663868][   T24] audit: type=1400 audit(1731883305.729:68): avc:  denied  { mounton } for  pid=287 comm="syz-executor134" path="/root/syzkaller.BI5BCX/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[pid   288] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   288] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   288] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   288] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   288] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   288] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   288] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   288] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   288] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   288] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   288] exit_group(0)               = ?
[pid   288] +++ exited with 0 +++
[pid   287] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   287] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   287] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   287] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   287] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   287] getdents64(3, 0x55555b4b96f0 /* 6 entries */, 32768) = 176
[pid   287] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   287] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   287] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   287] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   287] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   287] getdents64(4, 0x55555b4c1730 /* 2 entries */, 32768) = 48
[pid   287] getdents64(4, 0x55555b4c1730 /* 0 entries */, 32768) = 0
[pid   287] close(4)                    = 0
[pid   287] rmdir("./0/.incomplete")    = 0
[pid   287] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   287] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   287] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   287] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   287] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   287] getdents64(4, 0x55555b4c1730 /* 2 entries */, 32768) = 48
[pid   287] getdents64(4, 0x55555b4c1730 /* 0 entries */, 32768) = 0
[pid   287] close(4)                    = 0
[pid   287] rmdir("./0/.index")         = 0
[   19.680504][   T24] audit: type=1400 audit(1731883305.729:69): avc:  denied  { mount } for  pid=287 comm="syz-executor134" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   19.692081][  T288] incfs: ino conflict with backing FS 8
[   19.702696][   T24] audit: type=1400 audit(1731883305.729:70): avc:  denied  { mounton } for  pid=287 comm="syz-executor134" path="/root/syzkaller.BI5BCX/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
[   19.732863][   T24] audit: type=1400 audit(1731883305.729:71): avc:  denied  { mount } for  pid=287 comm="syz-executor134" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   19.733001][  T287] ------------[ cut here ]------------
[   19.754699][   T24] audit: type=1400 audit(1731883305.729:72): avc:  denied  { mounton } for  pid=287 comm="syz-executor134" path="/root/syzkaller.BI5BCX/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
[   19.759957][  T287] WARNING: CPU: 1 PID: 287 at fs/inode.c:304 drop_nlink+0xc1/0x110
[   19.786420][   T24] audit: type=1400 audit(1731883305.729:73): avc:  denied  { mounton } for  pid=287 comm="syz-executor134" path="/root/syzkaller.BI5BCX/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14623 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   19.794102][  T287] Modules linked in:
[   19.821520][   T24] audit: type=1400 audit(1731883305.729:74): avc:  denied  { unmount } for  pid=287 comm="syz-executor134" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   19.825176][  T287] CPU: 1 PID: 287 Comm: syz-executor134 Not tainted 5.10.226-syzkaller-00001-g6a01908517df #0
[   19.844672][   T24] audit: type=1400 audit(1731883305.749:75): avc:  denied  { mounton } for  pid=287 comm="syz-executor134" path="/dev/binderfs" dev="devtmpfs" ino=509 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   19.854605][  T287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   19.854634][  T287] RIP: 0010:drop_nlink+0xc1/0x110
[   19.891992][  T287] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 a7 cc f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 8f 2f b3 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   19.911504][  T287] RSP: 0018:ffffc90000b17be8 EFLAGS: 00010293
[   19.917452][  T287] RAX: ffffffff81b77d61 RBX: 0000000000000000 RCX: ffff88810caa62c0
[   19.925241][  T287] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   19.933080][  T287] RBP: ffffc90000b17c10 R08: ffffffff81b77ce4 R09: 0000000000000003
[   19.940872][  T287] R10: fffff52000162f6c R11: dffffc0000000001 R12: dffffc0000000000
[   19.948697][  T287] R13: 1ffff110235dcc9d R14: ffff88811aee64a0 R15: ffff88811aee64e8
[   19.956494][  T287] FS:  000055555b4b8380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   19.965246][  T287] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.971699][  T287] CR2: 000055555b4c9738 CR3: 000000010c9e1000 CR4: 00000000003506a0
[   19.979498][  T287] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.987312][  T287] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.995100][  T287] Call Trace:
[   19.998258][  T287]  ? show_regs+0x58/0x60
[   20.002431][  T287]  ? __warn+0x160/0x2f0
[   20.006431][  T287]  ? drop_nlink+0xc1/0x110
[   20.010644][  T287]  ? report_bug+0x3d9/0x5b0
[   20.014985][  T287]  ? drop_nlink+0xc1/0x110
[   20.019264][  T287]  ? handle_bug+0x41/0x70
[   20.023402][  T287]  ? exc_invalid_op+0x1b/0x50
[   20.027944][  T287]  ? asm_exc_invalid_op+0x12/0x20
[   20.032780][  T287]  ? drop_nlink+0x44/0x110
[   20.037237][  T287]  ? drop_nlink+0xc1/0x110
[   20.041453][  T287]  ? drop_nlink+0xc1/0x110
[   20.045700][  T287]  ? drop_nlink+0xc1/0x110
[   20.049990][  T287]  shmem_rmdir+0x59/0x90
[   20.054039][  T287]  vfs_rmdir+0x2b7/0x3f0
[   20.058142][  T287]  incfs_kill_sb+0x108/0x220
[   20.062542][  T287]  deactivate_locked_super+0xad/0x110
[   20.067778][  T287]  deactivate_super+0xbe/0xf0
[   20.072263][  T287]  cleanup_mnt+0x45c/0x510
[   20.076563][  T287]  __cleanup_mnt+0x19/0x20
[   20.080769][  T287]  task_work_run+0x129/0x190
[   20.085195][  T287]  ptrace_notify+0x29e/0x350
[   20.089663][  T287]  ? do_notify_parent+0xa10/0xa10
[   20.094485][  T287]  ? user_path_at_empty+0x40/0x50
[   20.099372][  T287]  ? __x64_sys_umount+0x122/0x170
[   20.104212][  T287]  ? path_umount+0xea0/0xea0
[   20.108658][  T287]  syscall_exit_to_user_mode+0xf5/0x1a0
[   20.114016][  T287]  do_syscall_64+0x40/0x70
[   20.118288][  T287]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   20.123990][  T287] RIP: 0033:0x7fbd8067ba07
[   20.128269][  T287] 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
[   20.147709][  T287] RSP: 002b:00007ffc3d8cc748 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   20.155927][  T287] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbd8067ba07
[   20.163768][  T287] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc3d8cc800
[   20.171567][  T287] RBP: 00007ffc3d8cc800 R08: 0000000000000000 R09: 0000000000000000
[   20.179391][  T287] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc3d8cd870
[   20.187277][  T287] R13: 000055555b4b96c0 R14: 00007ffc3d8cd870 R15: 0000000000000001
[   20.195088][  T287] ---[ end trace 15c48695493d5666 ]---
[   20.200435][  T287] ==================================================================
[   20.208274][  T287] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   20.214341][  T287] Write of size 4 at addr 0000000000000170 by task syz-executor134/287
[   20.222407][  T287] 
[   20.224585][  T287] CPU: 1 PID: 287 Comm: syz-executor134 Tainted: G        W         5.10.226-syzkaller-00001-g6a01908517df #0
[   20.236123][  T287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   20.246020][  T287] Call Trace:
[   20.249151][  T287]  dump_stack_lvl+0x1e2/0x24b
[   20.253659][  T287]  ? panic+0x812/0x812
[   20.257565][  T287]  ? bfq_pos_tree_add_move+0x43b/0x43b
[   20.262858][  T287]  ? _raw_spin_lock+0xa4/0x1b0
[   20.267457][  T287]  ? _raw_spin_trylock_bh+0x190/0x190
[   20.272668][  T287]  kasan_report+0x167/0x1c0
[   20.277013][  T287]  ? ihold+0x20/0x60
[   20.280739][  T287]  ? ihold+0x20/0x60
[   20.284472][  T287]  kasan_check_range+0x293/0x2a0
[   20.289247][  T287]  __kasan_check_write+0x14/0x20
[   20.294016][  T287]  ihold+0x20/0x60
[   20.297582][  T287]  vfs_rmdir+0x200/0x3f0
[   20.301654][  T287]  incfs_kill_sb+0x108/0x220
[   20.306084][  T287]  deactivate_locked_super+0xad/0x110
[   20.311290][  T287]  deactivate_super+0xbe/0xf0
[   20.315803][  T287]  cleanup_mnt+0x45c/0x510
[   20.320073][  T287]  __cleanup_mnt+0x19/0x20
[   20.324313][  T287]  task_work_run+0x129/0x190
[   20.328747][  T287]  ptrace_notify+0x29e/0x350
[   20.333160][  T287]  ? do_notify_parent+0xa10/0xa10
[   20.338025][  T287]  ? user_path_at_empty+0x40/0x50
[   20.342882][  T287]  ? __x64_sys_umount+0x122/0x170
[   20.347741][  T287]  ? path_umount+0xea0/0xea0
[   20.352172][  T287]  syscall_exit_to_user_mode+0xf5/0x1a0
[   20.357553][  T287]  do_syscall_64+0x40/0x70
[   20.361808][  T287]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   20.367533][  T287] RIP: 0033:0x7fbd8067ba07
[   20.371785][  T287] 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
[   20.391236][  T287] RSP: 002b:00007ffc3d8cc748 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   20.399476][  T287] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbd8067ba07
[   20.407283][  T287] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc3d8cc800
[   20.415097][  T287] RBP: 00007ffc3d8cc800 R08: 0000000000000000 R09: 0000000000000000
[   20.422907][  T287] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc3d8cd870
[   20.430812][  T287] R13: 000055555b4b96c0 R14: 00007ffc3d8cd870 R15: 0000000000000001
[   20.438616][  T287] ==================================================================
[   20.446512][  T287] Disabling lock debugging due to kernel taint
[   20.452603][  T287] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   20.460144][  T287] #PF: supervisor write access in kernel mode
[   20.466043][  T287] #PF: error_code(0x0002) - not-present page
[   20.471855][  T287] PGD 0 P4D 0 
[   20.475072][  T287] Oops: 0002 [#1] PREEMPT SMP KASAN
[   20.480110][  T287] CPU: 1 PID: 287 Comm: syz-executor134 Tainted: G    B   W         5.10.226-syzkaller-00001-g6a01908517df #0
[   20.491560][  T287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   20.501462][  T287] RIP: 0010:ihold+0x25/0x60
[   20.505799][  T287] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 a1 27 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 90 c4 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 24 2b b3
[   20.525242][  T287] RSP: 0018:ffffc90000b17c28 EFLAGS: 00010246
[   20.531141][  T287] RAX: ffff88810caa6200 RBX: 0000000000000001 RCX: ffff88810caa62c0
[   20.538949][  T287] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   20.546761][  T287] RBP: ffffc90000b17c38 R08: ffffffff813e2a7b R09: 0000000000000003
[   20.554574][  T287] R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
[   20.562388][  T287] R13: ffff88810932ccc0 R14: 0000000000000000 R15: 0000000000000000
[   20.570198][  T287] FS:  000055555b4b8380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   20.578961][  T287] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.585386][  T287] CR2: 0000000000000170 CR3: 000000010c9e1000 CR4: 00000000003506a0
[   20.593201][  T287] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.601007][  T287] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.608815][  T287] Call Trace:
[   20.611953][  T287]  ? __die_body+0x62/0xb0
[   20.616115][  T287]  ? __die+0x7e/0x90
[   20.619845][  T287]  ? no_context+0x9f9/0xd20
[   20.624184][  T287]  ? is_prefetch+0x5c0/0x5c0
[   20.628611][  T287]  ? preempt_schedule+0xd9/0xe0
[   20.633299][  T287]  ? __kasan_check_read+0x11/0x20
[   20.638159][  T287]  ? preempt_schedule_common+0xbe/0xf0
[   20.643453][  T287]  ? preempt_schedule+0xd9/0xe0
[   20.648139][  T287]  ? schedule_preempt_disabled+0x20/0x20
[   20.653607][  T287]  ? sysvec_apic_timer_interrupt+0xcb/0xe0
[   20.659261][  T287]  ? __bad_area_nosemaphore+0xc4/0x430
[   20.664542][  T287]  ? bad_area_nosemaphore+0x2d/0x40
[   20.669580][  T287]  ? exc_page_fault+0x3df/0x5b0
[   20.674265][  T287]  ? asm_exc_page_fault+0x1e/0x30
[   20.679125][  T287]  ? check_panic_on_warn+0x5b/0xb0
[   20.684073][  T287]  ? ihold+0x25/0x60
[   20.687805][  T287]  ? ihold+0x20/0x60
[   20.691538][  T287]  vfs_rmdir+0x200/0x3f0
[   20.695617][  T287]  incfs_kill_sb+0x108/0x220
[   20.700048][  T287]  deactivate_locked_super+0xad/0x110
[   20.705251][  T287]  deactivate_super+0xbe/0xf0
[   20.709765][  T287]  cleanup_mnt+0x45c/0x510
[   20.714016][  T287]  __cleanup_mnt+0x19/0x20
[   20.718270][  T287]  task_work_run+0x129/0x190
[   20.722699][  T287]  ptrace_notify+0x29e/0x350
[   20.727145][  T287]  ? do_notify_parent+0xa10/0xa10
[   20.731983][  T287]  ? user_path_at_empty+0x40/0x50
[   20.736845][  T287]  ? __x64_sys_umount+0x122/0x170
[   20.741703][  T287]  ? path_umount+0xea0/0xea0
[   20.746146][  T287]  syscall_exit_to_user_mode+0xf5/0x1a0
[   20.751529][  T287]  do_syscall_64+0x40/0x70
[   20.755773][  T287]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   20.761491][  T287] RIP: 0033:0x7fbd8067ba07
[   20.765746][  T287] 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
[   20.785188][  T287] RSP: 002b:00007ffc3d8cc748 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   20.793433][  T287] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbd8067ba07
[   20.801329][  T287] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc3d8cc800
[   20.809140][  T287] RBP: 00007ffc3d8cc800 R08: 0000000000000000 R09: 0000000000000000
[   20.816951][  T287] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc3d8cd870
[   20.824763][  T287] R13: 000055555b4b96c0 R14: 00007ffc3d8cd870 R15: 0000000000000001
[   20.832574][  T287] Modules linked in:
[   20.836319][  T287] CR2: 0000000000000170
[   20.840309][  T287] ---[ end trace 15c48695493d5667 ]---
[   20.845614][  T287] RIP: 0010:ihold+0x25/0x60
[   20.849934][  T287] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 a1 27 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 90 c4 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 24 2b b3
[   20.869377][  T287] RSP: 0018:ffffc90000b17c28 EFLAGS: 00010246
[   20.875302][  T287] RAX: ffff88810caa6200 RBX: 0000000000000001 RCX: ffff88810caa62c0
[   20.883097][  T287] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   20.890911][  T287] RBP: ffffc90000b17c38 R08: ffffffff813e2a7b R09: 0000000000000003
[   20.898720][  T287] R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
[   20.906531][  T287] R13: ffff88810932ccc0 R14: 0000000000000000 R15: 0000000000000000
[   20.914354][  T287] FS:  000055555b4b8380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   20.923116][  T287] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.929527][  T287] CR2: 0000000000000170 CR3: 000000010c9e1000 CR4: 00000000003506a0
[   20.937349][  T287] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.945154][  T287] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.952969][  T287] Kernel panic - not syncing: Fatal exception
[   20.959079][  T287] Kernel Offset: disabled
[   20.963199][  T287] Rebooting in 86400 seconds..