./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3515857011

<...>
[    6.605046][   T30] audit: type=1400 audit(1735552200.736:30): avc:  denied  { search } for  pid=136 comm="dhcpcd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[    6.611896][   T30] audit: type=1400 audit(1735552200.746:31): avc:  denied  { write } for  pid=136 comm="dhcpcd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   14.842575][   T30] kauditd_printk_skb: 29 callbacks suppressed
[   14.842591][   T30] audit: type=1400 audit(1735552208.976:61): avc:  denied  { transition } for  pid=225 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
[   14.852394][   T30] audit: type=1400 audit(1735552208.976:62): avc:  denied  { noatsecure } for  pid=225 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   14.858421][   T30] audit: type=1400 audit(1735552208.976:63): avc:  denied  { write } for  pid=225 comm="sh" path="pipe:[13991]" dev="pipefs" ino=13991 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[   14.872685][   T30] audit: type=1400 audit(1735552208.976:64): avc:  denied  { rlimitinh } for  pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   14.891323][   T30] audit: type=1400 audit(1735552208.976:65): avc:  denied  { siginh } for  pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   16.814016][  T229] sftp-server (229) used greatest stack depth: 20984 bytes left
[   17.532068][  T244] sftp-server (244) used greatest stack depth: 20096 bytes left
Warning: Permanently added '10.128.1.142' (ED25519) to the list of known hosts.
execve("./syz-executor3515857011", ["./syz-executor3515857011"], 0x7fff156afd80 /* 10 vars */) = 0
brk(NULL)                               = 0x55557c58d000
brk(0x55557c58de00)                     = 0x55557c58de00
arch_prctl(ARCH_SET_FS, 0x55557c58d480) = 0
set_tid_address(0x55557c58d750)         = 295
set_robust_list(0x55557c58d760, 24)     = 0
rseq(0x55557c58dda0, 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-executor3515857011", 4096) = 28
getrandom("\x60\x74\x5d\x11\x8b\x4d\x82\x48", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557c58de00
brk(0x55557c5aee00)                     = 0x55557c5aee00
brk(0x55557c5af000)                     = 0x55557c5af000
mprotect(0x7fae18051000, 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=0x7fae17fa7da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fae17fafb90}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7fae17fa7da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fae17fafb90}, NULL, 8) = 0
mkdir("./syzkaller.NsC0c0", 0700)       = 0
chmod("./syzkaller.NsC0c0", 0777)       = 0
chdir("./syzkaller.NsC0c0")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c58d750) = 296
./strace-static-x86_64: Process 296 attached
[pid   296] set_robust_list(0x55557c58d760, 24) = 0
[pid   296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   296] getppid()                   = 0
[pid   296] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   296] unshare(CLONE_NEWNS)        = 0
[pid   296] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[   24.611484][   T30] audit: type=1400 audit(1735552218.746:66): avc:  denied  { execmem } for  pid=295 comm="syz-executor351" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[pid   296] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   296] unshare(CLONE_NEWCGROUP)    = 0
[pid   296] unshare(CLONE_NEWUTS)       = 0
[pid   296] unshare(CLONE_SYSVSEM)      = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] getpid()                    = 1
[pid   296] 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   296] 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   296] unshare(CLONE_NEWNET)       = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   296] write(3, "0 65535", 7)      = 7
[pid   296] close(3)                    = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   296] write(3, "100000", 6)       = 6
[pid   296] close(3)                    = 0
[pid   296] mkdir("./syz-tmp", 0777)    = 0
[pid   296] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   296] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   296] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   296] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   296] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   296] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   296] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] 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   296] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   296] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   296] chdir("/")                  = 0
[pid   296] umount2("./pivot", MNT_DETACH) = 0
[pid   296] chroot("./newroot")         = 0
[pid   296] chdir("/")                  = 0
[pid   296] mkdir("/dev/gadgetfs", 0777) = 0
[   24.647332][   T30] audit: type=1400 audit(1735552218.776:67): avc:  denied  { mounton } for  pid=296 comm="syz-executor351" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   296] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   296] mkdir("/dev/binderfs", 0777) = 0
[pid   296] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   296] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   296] mkdir("./0", 0777)          = 0
[pid   296] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   296] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   296] close(3)                    = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c58d750) = 2
./strace-static-x86_64: Process 297 attached
[pid   297] set_robust_list(0x55557c58d760, 24) = 0
[pid   297] chdir("./0")                = 0
[pid   297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   297] setpgid(0, 0)               = 0
[pid   297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "1000", 4)         = 4
[pid   297] close(3)                    = 0
[pid   297] symlink("/dev/binderfs", "./binderfs") = 0
[pid   297] write(1, "executing program\n", 18executing program
) = 18
[pid   297] mkdir("./file0", 0777)      = 0
[pid   297] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   297] mount(NULL, NULL, NULL, 0, NULL) = -1 EFAULT (Bad address)
[pid   297] chdir(NULL)                 = -1 EFAULT (Bad address)
[pid   297] mkdir(NULL, 000)            = -1 EFAULT (Bad address)
[pid   297] mount("./file0", "./file0", "incremental-fs", MS_NOEXEC|MS_NOATIME|MS_STRICTATIME, NULL) = 0
[pid   297] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   24.695772][   T30] audit: type=1400 audit(1735552218.826:68): avc:  denied  { mounton } for  pid=296 comm="syz-executor351" path="/root/syzkaller.NsC0c0/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   24.699015][  T296] request_module fs-gadgetfs succeeded, but still no fs?
[   24.720391][   T30] audit: type=1400 audit(1735552218.826:69): avc:  denied  { mount } for  pid=296 comm="syz-executor351" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   24.745089][  T297] =======================================================
[pid   297] mount("./file0/file0", "./file0/file0", NULL, MS_NOSUID|MS_NOEXEC|MS_SYNCHRONOUS|MS_MANDLOCK|MS_BIND|MS_POSIXACL|MS_I_VERSION, NULL) = 0
[pid   297] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   297] exit_group(0)               = ?
[pid   297] +++ exited with 0 +++
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   296] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(3, 0x55557c58e7f0 /* 4 entries */, 32768) = 112
[pid   296] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   296] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   296] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   296] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(4, 0x55557c596830 /* 4 entries */, 32768) = 112
[   24.745089][  T297] WARNING: The mand mount option has been deprecated and
[   24.745089][  T297]          and is ignored by this kernel. Remove the mand
[   24.745089][  T297]          option from the mount to silence this warning.
[   24.745089][  T297] =======================================================
[pid   296] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   296] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/file0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   296] newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(5, 0x55557c59e870 /* 4 entries */, 32768) = 112
[pid   296] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/file0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/file0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   296] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(6, 0x55557c5a68b0 /* 2 entries */, 32768) = 48
[pid   296] getdents64(6, 0x55557c5a68b0 /* 0 entries */, 32768) = 0
[pid   296] close(6)                    = 0
[pid   296] rmdir("./0/file0/file0/.incomplete") = 0
[pid   296] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/file0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/file0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   296] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(6, 0x55557c5a68b0 /* 2 entries */, 32768) = 48
[pid   296] getdents64(6, 0x55557c5a68b0 /* 0 entries */, 32768) = 0
[pid   296] close(6)                    = 0
[pid   296] rmdir("./0/file0/file0/.index") = 0
[pid   296] getdents64(5, 0x55557c59e870 /* 0 entries */, 32768) = 0
[pid   296] close(5)                    = 0
[pid   296] rmdir("./0/file0/file0")    = -1 EBUSY (Device or resource busy)
[pid   296] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] exit_group(1)               = ?
[   24.789016][   T30] audit: type=1400 audit(1735552218.826:70): avc:  denied  { mounton } for  pid=296 comm="syz-executor351" path="/root/syzkaller.NsC0c0/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
[   24.814501][   T30] audit: type=1400 audit(1735552218.826:71): avc:  denied  { mount } for  pid=296 comm="syz-executor351" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   24.836549][   T30] audit: type=1400 audit(1735552218.826:72): avc:  denied  { mounton } for  pid=296 comm="syz-executor351" path="/root/syzkaller.NsC0c0/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
[   24.863325][   T30] audit: type=1400 audit(1735552218.826:73): avc:  denied  { mounton } for  pid=296 comm="syz-executor351" path="/root/syzkaller.NsC0c0/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14683 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   24.871726][  T296] ------------[ cut here ]------------
[   24.892033][   T30] audit: type=1400 audit(1735552218.826:74): avc:  denied  { unmount } for  pid=296 comm="syz-executor351" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   24.909791][  T296] WARNING: CPU: 0 PID: 296 at fs/inode.c:307 drop_nlink+0xc1/0x110
[   24.916829][   T30] audit: type=1400 audit(1735552218.826:75): avc:  denied  { mounton } for  pid=296 comm="syz-executor351" path="/dev/gadgetfs" dev="devtmpfs" ino=514 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   24.924619][  T296] Modules linked in:
[   24.951101][  T296] CPU: 0 PID: 296 Comm: syz-executor351 Not tainted 5.15.173-syzkaller-00161-gb4bd207b0380 #0
[   24.961294][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.971183][  T296] RIP: 0010:drop_nlink+0xc1/0x110
[   24.976022][  T296] 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
[   24.995529][  T296] RSP: 0018:ffffc9000079fb08 EFLAGS: 00010293
[   25.001387][  T296] RAX: ffffffff81c1cc61 RBX: 0000000000000000 RCX: ffff88810d00cf00
[   25.009174][  T296] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.017154][  T296] RBP: ffffc9000079fb30 R08: ffffffff81c1cbe4 R09: 0000000000000003
[   25.024981][  T296] R10: fffff520000f3f50 R11: dffffc0000000001 R12: dffffc0000000000
[   25.032750][  T296] R13: 1ffff110235f6469 R14: ffff88811afb2300 R15: ffff88811afb2348
[   25.040519][  T296] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   25.049335][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.055735][  T296] CR2: 000055ff31b6c078 CR3: 000000010cf3e000 CR4: 00000000003506b0
[   25.063537][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.071369][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.079131][  T296] Call Trace:
[   25.082368][  T296]  <TASK>
[   25.085131][  T296]  ? show_regs+0x58/0x60
[   25.089227][  T296]  ? __warn+0x160/0x2f0
[   25.093234][  T296]  ? drop_nlink+0xc1/0x110
[   25.097507][  T296]  ? report_bug+0x3d9/0x5b0
[   25.101904][  T296]  ? drop_nlink+0xc1/0x110
[   25.106143][  T296]  ? handle_bug+0x41/0x70
[   25.110398][  T296]  ? exc_invalid_op+0x1b/0x50
[   25.115006][  T296]  ? asm_exc_invalid_op+0x1b/0x20
[   25.119898][  T296]  ? drop_nlink+0x44/0x110
[   25.124232][  T296]  ? drop_nlink+0xc1/0x110
[   25.128397][  T296]  ? drop_nlink+0xc1/0x110
[   25.132690][  T296]  ? drop_nlink+0xc1/0x110
[   25.136912][  T296]  shmem_rmdir+0x59/0x90
[   25.140979][  T296]  vfs_rmdir+0x324/0x470
[   25.145160][  T296]  incfs_kill_sb+0x113/0x230
[   25.149490][  T296]  deactivate_locked_super+0xad/0x110
[   25.154735][  T296]  deactivate_super+0xbe/0xf0
[   25.159221][  T296]  cleanup_mnt+0x45c/0x510
[   25.163499][  T296]  __cleanup_mnt+0x19/0x20
[   25.167748][  T296]  task_work_run+0x129/0x190
[   25.172318][  T296]  do_exit+0xc48/0x2ca0
[   25.176245][  T296]  ? put_task_struct+0x80/0x80
[   25.180956][  T296]  ? _raw_spin_unlock_irq+0x4e/0x70
[   25.186056][  T296]  ? ptrace_notify+0x24c/0x350
[   25.190596][  T296]  ? do_notify_parent+0xa30/0xa30
[   25.195639][  T296]  do_group_exit+0x141/0x310
[   25.199996][  T296]  __x64_sys_exit_group+0x3f/0x40
[   25.204889][  T296]  x64_sys_call+0x610/0x9a0
[   25.209188][  T296]  do_syscall_64+0x3b/0xb0
[   25.213490][  T296]  ? clear_bhb_loop+0x35/0x90
[   25.217971][  T296]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.223741][  T296] RIP: 0033:0x7fae17fdaf09
[   25.228295][  T296] Code: Unable to access opcode bytes at RIP 0x7fae17fdaedf.
[   25.235507][  T296] RSP: 002b:00007ffda14001f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   25.244037][  T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fae17fdaf09
[   25.251901][  T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   25.259619][  T296] RBP: 00007fae18057370 R08: ffffffffffffffb8 R09: 0000000000000000
[   25.267482][  T296] R10: 0000000000001000 R11: 0000000000000246 R12: 00007fae18057370
[   25.275423][  T296] R13: 0000000000000000 R14: 00007fae18057dc0 R15: 00007fae17fa8c90
[   25.283394][  T296]  </TASK>
[   25.286222][  T296] ---[ end trace 73249c02c48e9040 ]---
[   25.291559][  T296] ==================================================================
[   25.299366][  T296] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   25.305442][  T296] Write of size 4 at addr 0000000000000170 by task syz-executor351/296
[   25.313523][  T296] 
[   25.315692][  T296] CPU: 0 PID: 296 Comm: syz-executor351 Tainted: G        W         5.15.173-syzkaller-00161-gb4bd207b0380 #0
[   25.327150][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   25.337043][  T296] Call Trace:
[   25.340177][  T296]  <TASK>
[   25.342939][  T296]  dump_stack_lvl+0x151/0x1c0
[   25.347449][  T296]  ? io_uring_drop_tctx_refs+0x190/0x190
[   25.352916][  T296]  ? _raw_spin_lock+0xa4/0x1b0
[   25.357517][  T296]  ? _raw_spin_trylock_bh+0x190/0x190
[   25.362725][  T296]  kasan_report+0x16f/0x1c0
[   25.367063][  T296]  ? ihold+0x20/0x60
[   25.370806][  T296]  ? ihold+0x20/0x60
[   25.374529][  T296]  kasan_check_range+0x293/0x2a0
[   25.379302][  T296]  __kasan_check_write+0x14/0x20
[   25.384076][  T296]  ihold+0x20/0x60
[   25.387632][  T296]  vfs_rmdir+0x201/0x470
[   25.391716][  T296]  incfs_kill_sb+0x113/0x230
[   25.396139][  T296]  deactivate_locked_super+0xad/0x110
[   25.401346][  T296]  deactivate_super+0xbe/0xf0
[   25.405863][  T296]  cleanup_mnt+0x45c/0x510
[   25.410112][  T296]  __cleanup_mnt+0x19/0x20
[   25.414369][  T296]  task_work_run+0x129/0x190
[   25.418796][  T296]  do_exit+0xc48/0x2ca0
[   25.422879][  T296]  ? put_task_struct+0x80/0x80
[   25.427474][  T296]  ? _raw_spin_unlock_irq+0x4e/0x70
[   25.432512][  T296]  ? ptrace_notify+0x24c/0x350
[   25.437120][  T296]  ? do_notify_parent+0xa30/0xa30
[   25.441968][  T296]  do_group_exit+0x141/0x310
[   25.446395][  T296]  __x64_sys_exit_group+0x3f/0x40
[   25.451252][  T296]  x64_sys_call+0x610/0x9a0
[   25.455592][  T296]  do_syscall_64+0x3b/0xb0
[   25.459847][  T296]  ? clear_bhb_loop+0x35/0x90
[   25.464369][  T296]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.470092][  T296] RIP: 0033:0x7fae17fdaf09
[   25.474341][  T296] Code: Unable to access opcode bytes at RIP 0x7fae17fdaedf.
[   25.481547][  T296] RSP: 002b:00007ffda14001f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   25.489789][  T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fae17fdaf09
[   25.497601][  T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   25.505413][  T296] RBP: 00007fae18057370 R08: ffffffffffffffb8 R09: 0000000000000000
[   25.513235][  T296] R10: 0000000000001000 R11: 0000000000000246 R12: 00007fae18057370
[   25.521035][  T296] R13: 0000000000000000 R14: 00007fae18057dc0 R15: 00007fae17fa8c90
[   25.528853][  T296]  </TASK>
[   25.531710][  T296] ==================================================================
[   25.539609][  T296] Disabling lock debugging due to kernel taint
[   25.545840][  T296] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   25.553681][  T296] #PF: supervisor write access in kernel mode
[   25.559581][  T296] #PF: error_code(0x0002) - not-present page
[   25.565401][  T296] PGD 0 P4D 0 
[   25.568612][  T296] Oops: 0002 [#1] PREEMPT SMP KASAN
[   25.574097][  T296] CPU: 1 PID: 296 Comm: syz-executor351 Tainted: G    B   W         5.15.173-syzkaller-00161-gb4bd207b0380 #0
[   25.585534][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   25.595428][  T296] RIP: 0010:ihold+0x25/0x60
[   25.599781][  T296] 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
[   25.619210][  T296] RSP: 0018:ffffc9000079fb48 EFLAGS: 00010246
[   25.625110][  T296] RAX: ffff88810d00cf00 RBX: 0000000000000001 RCX: ffff88810d00cf00
[   25.632939][  T296] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   25.640740][  T296] RBP: ffffc9000079fb58 R08: ffffffff8141a43b R09: 0000000000000003
[   25.648544][  T296] R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: dffffc0000000000
[   25.656354][  T296] R13: ffff88812030f000 R14: 0000000000000000 R15: 1ffff11024061e06
[   25.664167][  T296] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   25.672932][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.679355][  T296] CR2: 0000000000000170 CR3: 0000000006a0f000 CR4: 00000000003506a0
[   25.687172][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.694982][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.702798][  T296] Call Trace:
[   25.705915][  T296]  <TASK>
[   25.708694][  T296]  ? __die_body+0x62/0xb0
[   25.712860][  T296]  ? __die+0x7e/0x90
[   25.716678][  T296]  ? page_fault_oops+0x7f9/0xa90
[   25.721450][  T296]  ? _raw_spin_unlock+0x4d/0x70
[   25.726146][  T296]  ? kernelmode_fixup_or_oops+0xd0/0xd0
[   25.731520][  T296]  ? __schedule+0xcd4/0x1590
[   25.735952][  T296]  ? exc_page_fault+0x510/0x7f0
[   25.740636][  T296]  ? asm_exc_page_fault+0x27/0x30
[   25.745497][  T296]  ? check_panic_on_warn+0x5b/0xb0
[   25.750441][  T296]  ? ihold+0x25/0x60
[   25.754174][  T296]  ? ihold+0x20/0x60
[   25.757910][  T296]  vfs_rmdir+0x201/0x470
[   25.761986][  T296]  incfs_kill_sb+0x113/0x230
[   25.766410][  T296]  deactivate_locked_super+0xad/0x110
[   25.771617][  T296]  deactivate_super+0xbe/0xf0
[   25.776132][  T296]  cleanup_mnt+0x45c/0x510
[   25.780383][  T296]  __cleanup_mnt+0x19/0x20
[   25.784635][  T296]  task_work_run+0x129/0x190
[   25.789065][  T296]  do_exit+0xc48/0x2ca0
[   25.793055][  T296]  ? put_task_struct+0x80/0x80
[   25.797662][  T296]  ? _raw_spin_unlock_irq+0x4e/0x70
[   25.802691][  T296]  ? ptrace_notify+0x24c/0x350
[   25.807289][  T296]  ? do_notify_parent+0xa30/0xa30
[   25.812323][  T296]  do_group_exit+0x141/0x310
[   25.816752][  T296]  __x64_sys_exit_group+0x3f/0x40
[   25.821611][  T296]  x64_sys_call+0x610/0x9a0
[   25.825949][  T296]  do_syscall_64+0x3b/0xb0
[   25.830213][  T296]  ? clear_bhb_loop+0x35/0x90
[   25.834893][  T296]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.840744][  T296] RIP: 0033:0x7fae17fdaf09
[   25.844996][  T296] Code: Unable to access opcode bytes at RIP 0x7fae17fdaedf.
[   25.852203][  T296] RSP: 002b:00007ffda14001f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   25.860441][  T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fae17fdaf09
[   25.868253][  T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   25.876066][  T296] RBP: 00007fae18057370 R08: ffffffffffffffb8 R09: 0000000000000000
[   25.883879][  T296] R10: 0000000000001000 R11: 0000000000000246 R12: 00007fae18057370
[   25.891692][  T296] R13: 0000000000000000 R14: 00007fae18057dc0 R15: 00007fae17fa8c90
[   25.899591][  T296]  </TASK>
[   25.902451][  T296] Modules linked in:
[   25.906203][  T296] CR2: 0000000000000170
[   25.910186][  T296] ---[ end trace 73249c02c48e9041 ]---
[   25.915471][  T296] RIP: 0010:ihold+0x25/0x60
[   25.919810][  T296] 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
[   25.939250][  T296] RSP: 0018:ffffc9000079fb48 EFLAGS: 00010246
[   25.945155][  T296] RAX: ffff88810d00cf00 RBX: 0000000000000001 RCX: ffff88810d00cf00
[   25.952966][  T296] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   25.960775][  T296] RBP: ffffc9000079fb58 R08: ffffffff8141a43b R09: 0000000000000003
[   25.968589][  T296] R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: dffffc0000000000
[   25.976398][  T296] R13: ffff88812030f000 R14: 0000000000000000 R15: 1ffff11024061e06
[   25.984209][  T296] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   25.993240][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.999658][  T296] CR2: 0000000000000170 CR3: 0000000006a0f000 CR4: 00000000003506a0
[   26.007563][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.015368][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.023192][  T296] Kernel panic - not syncing: Fatal exception
[   26.029275][  T296] Kernel Offset: disabled
[   26.033410][  T296] Rebooting in 86400 seconds..