./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor173092789

<...>
[    4.475538][   T28] audit: type=1400 audit(1736682123.196:10): avc:  denied  { getattr } for  pid=85 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
[    4.716207][  T102] udevd[102]: starting version 3.2.11
[    4.826350][  T103] udevd[103]: starting eudev-3.2.11
[   15.458157][   T28] kauditd_printk_skb: 50 callbacks suppressed
[   15.458174][   T28] audit: type=1400 audit(1736682134.196:61): avc:  denied  { transition } for  pid=228 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
[   15.474063][   T28] audit: type=1400 audit(1736682134.196:62): avc:  denied  { noatsecure } for  pid=228 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   15.501024][   T28] audit: type=1400 audit(1736682134.196:63): avc:  denied  { write } for  pid=228 comm="sh" path="pipe:[14014]" dev="pipefs" ino=14014 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[   15.527458][   T28] audit: type=1400 audit(1736682134.196:64): avc:  denied  { rlimitinh } for  pid=228 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   15.547781][   T28] audit: type=1400 audit(1736682134.196:65): avc:  denied  { siginh } for  pid=228 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   17.609820][  T232] sftp-server (232) used greatest stack depth: 22480 bytes left
Warning: Permanently added '10.128.1.174' (ED25519) to the list of known hosts.
execve("./syz-executor173092789", ["./syz-executor173092789"], 0x7fffa0e77870 /* 10 vars */) = 0
brk(NULL)                               = 0x555580fdb000
brk(0x555580fdbd00)                     = 0x555580fdbd00
arch_prctl(ARCH_SET_FS, 0x555580fdb380) = 0
set_tid_address(0x555580fdb650)         = 298
set_robust_list(0x555580fdb660, 24)     = 0
rseq(0x555580fdbca0, 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-executor173092789", 4096) = 27
getrandom("\x3f\x16\xe7\x7e\xc1\x4e\x66\x04", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555580fdbd00
brk(0x555580ffcd00)                     = 0x555580ffcd00
brk(0x555580ffd000)                     = 0x555580ffd000
mprotect(0x7f58e8a0e000, 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.g6oMqd", 0700)       = 0
chmod("./syzkaller.g6oMqd", 0777)       = 0
chdir("./syzkaller.g6oMqd")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 299 attached
, child_tidptr=0x555580fdb650) = 299
[pid   299] set_robust_list(0x555580fdb660, 24) = 0
[pid   299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   299] getppid()                   = 0
[pid   299] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   299] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   299] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   299] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   299] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   299] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   299] unshare(CLONE_NEWNS)        = 0
[pid   299] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   299] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   299] unshare(CLONE_NEWCGROUP)    = 0
[pid   299] unshare(CLONE_NEWUTS)       = 0
[pid   299] unshare(CLONE_SYSVSEM)      = 0
[pid   299] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   299] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   299] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   299] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   299] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   299] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   299] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   299] getpid()                    = 1
[pid   299] 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   299] 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
[   25.442968][   T28] audit: type=1400 audit(1736682144.176:66): avc:  denied  { execmem } for  pid=298 comm="syz-executor173" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[pid   299] unshare(CLONE_NEWNET)       = 0
[pid   299] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   299] write(3, "0 65535", 7)      = 7
[pid   299] close(3)                    = 0
[pid   299] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   299] write(3, "100000", 6)       = 6
[pid   299] close(3)                    = 0
[pid   299] mkdir("./syz-tmp", 0777)    = 0
[pid   299] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   299] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   299] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   299] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   299] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   299] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   299] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   299] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   299] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   299] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   299] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   299] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   299] 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   299] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   299] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   299] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   299] chdir("/")                  = 0
[pid   299] umount2("./pivot", MNT_DETACH) = 0
[pid   299] chroot("./newroot")         = 0
[pid   299] chdir("/")                  = 0
[pid   299] mkdir("/dev/gadgetfs", 0777) = 0
[   25.476418][   T28] audit: type=1400 audit(1736682144.216:67): avc:  denied  { mounton } for  pid=299 comm="syz-executor173" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   25.507790][   T28] audit: type=1400 audit(1736682144.246:68): avc:  denied  { mounton } for  pid=299 comm="syz-executor173" path="/root/syzkaller.g6oMqd/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[pid   299] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   299] mkdir("/dev/binderfs", 0777) = 0
[pid   299] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   299] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   299] mkdir("./0", 0777)          = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555580fdb650) = 2
./strace-static-x86_64: Process 301 attached
[pid   301] set_robust_list(0x555580fdb660, 24) = 0
[pid   301] chdir("./0")                = 0
[pid   301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   301] setpgid(0, 0)               = 0
[pid   301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   301] write(3, "1000", 4)         = 4
[pid   301] close(3)                    = 0
[pid   301] symlink("/dev/binderfs", "./binderfs") = 0
[pid   301] write(1, "executing program\n", 18executing program
) = 18
[pid   301] mkdir("./file0", 000)       = 0
[pid   301] mount(".", "./file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   25.537177][   T28] audit: type=1400 audit(1736682144.246:69): avc:  denied  { mount } for  pid=299 comm="syz-executor173" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   25.540052][  T299] request_module fs-gadgetfs succeeded, but still no fs?
[pid   301] mount("./file0", "./file0", "incremental-fs", MS_RDONLY, NULL) = 0
[pid   301] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   301] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   301] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   301] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   301] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   301] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   301] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   301] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   301] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   301] exit_group(0)               = ?
[pid   301] +++ exited with 0 +++
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   299] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   299] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   299] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   299] getdents64(3, 0x555580fdc6f0 /* 6 entries */, 32768) = 176
[pid   299] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   299] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   299] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   299] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   299] getdents64(4, 0x555580fe4730 /* 2 entries */, 32768) = 48
[pid   299] getdents64(4, 0x555580fe4730 /* 0 entries */, 32768) = 0
[pid   299] close(4)                    = 0
[pid   299] rmdir("./0/.incomplete")    = 0
[pid   299] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   299] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   299] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   299] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   299] getdents64(4, 0x555580fe4730 /* 2 entries */, 32768) = 48
[pid   299] getdents64(4, 0x555580fe4730 /* 0 entries */, 32768) = 0
[pid   299] close(4)                    = 0
[pid   299] rmdir("./0/.index")         = 0
[   25.567380][   T28] audit: type=1400 audit(1736682144.256:70): avc:  denied  { mounton } for  pid=299 comm="syz-executor173" path="/root/syzkaller.g6oMqd/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   25.588461][  T301] incfs: ino conflict with backing FS 8
[   25.612763][   T28] audit: type=1400 audit(1736682144.256:71): avc:  denied  { mount } for  pid=299 comm="syz-executor173" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   25.645495][   T28] audit: type=1400 audit(1736682144.256:72): avc:  denied  { mounton } for  pid=299 comm="syz-executor173" path="/root/syzkaller.g6oMqd/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[   25.645703][  T299] ------------[ cut here ]------------
[   25.677775][   T28] audit: type=1400 audit(1736682144.256:73): avc:  denied  { mounton } for  pid=299 comm="syz-executor173" path="/root/syzkaller.g6oMqd/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14801 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   25.683166][  T299] WARNING: CPU: 0 PID: 299 at fs/inode.c:332 drop_nlink+0xc1/0x110
[   25.721664][  T299] Modules linked in:
[   25.722017][   T28] audit: type=1400 audit(1736682144.256:74): avc:  denied  { unmount } for  pid=299 comm="syz-executor173" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   25.725526][  T299] CPU: 0 PID: 299 Comm: syz-executor173 Not tainted 6.1.118-syzkaller-00015-g770852bf7d99 #0
[   25.759605][  T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   25.759652][   T28] audit: type=1400 audit(1736682144.276:75): avc:  denied  { mounton } for  pid=299 comm="syz-executor173" path="/dev/gadgetfs" dev="devtmpfs" ino=522 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   25.770413][  T299] RIP: 0010:drop_nlink+0xc1/0x110
[   25.814571][  T299] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 c7 d5 ef ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 6f 5f a8 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   25.837380][  T299] RSP: 0018:ffffc90000dc7b30 EFLAGS: 00010293
[   25.845782][  T299] RAX: ffffffff81cd26d1 RBX: 0000000000000000 RCX: ffff88810fd00000
[   25.855577][  T299] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.865396][  T299] RBP: ffffc90000dc7b58 R08: ffffffff81cd2654 R09: 0000000000000003
[   25.873683][  T299] R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
[   25.882116][  T299] R13: 1ffff11024668c5a R14: ffff888123346288 R15: ffff8881233462d0
[   25.890477][  T299] FS:  0000555580fdb380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   25.899436][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.906223][  T299] CR2: 00005574019595e8 CR3: 0000000125554000 CR4: 00000000003506b0
[   25.914610][  T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.923017][  T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.932419][  T299] Call Trace:
[   25.936734][  T299]  <TASK>
[   25.939607][  T299]  ? show_regs+0x58/0x60
[   25.944070][  T299]  ? __warn+0x160/0x3d0
[   25.948120][  T299]  ? drop_nlink+0xc1/0x110
[   25.952623][  T299]  ? report_bug+0x4d5/0x7d0
[   25.958316][  T299]  ? drop_nlink+0xc1/0x110
[   25.962696][  T299]  ? handle_bug+0x41/0x70
[   25.967262][  T299]  ? exc_invalid_op+0x1b/0x50
[   25.974643][  T299]  ? asm_exc_invalid_op+0x1b/0x20
[   25.982359][  T299]  ? drop_nlink+0x44/0x110
[   25.987870][  T299]  ? drop_nlink+0xc1/0x110
[   25.992302][  T299]  ? drop_nlink+0xc1/0x110
[   25.996904][  T299]  shmem_rmdir+0x59/0x90
[   26.002302][  T299]  vfs_rmdir+0x398/0x500
[   26.007337][  T299]  incfs_kill_sb+0x113/0x230
[   26.012186][  T299]  deactivate_locked_super+0xad/0x110
[   26.018485][  T299]  deactivate_super+0xbe/0xf0
[   26.023852][  T299]  cleanup_mnt+0x485/0x510
[   26.028113][  T299]  __cleanup_mnt+0x19/0x20
[   26.032475][  T299]  task_work_run+0x24d/0x2e0
[   26.037097][  T299]  ? task_work_cancel+0x2e0/0x2e0
[   26.042336][  T299]  ptrace_notify+0x29e/0x350
[   26.046811][  T299]  ? do_notify_parent+0xa20/0xa20
[   26.052989][  T299]  ? user_path_at_empty+0x14e/0x1a0
[   26.058744][  T299]  ? __x64_sys_umount+0x122/0x170
[   26.063718][  T299]  ? path_umount+0xe70/0xe70
[   26.068607][  T299]  syscall_exit_to_user_mode+0x99/0x130
[   26.074029][  T299]  do_syscall_64+0x47/0xb0
[   26.078504][  T299]  ? clear_bhb_loop+0x55/0xb0
[   26.082890][  T299]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.088844][  T299] RIP: 0033:0x7f58e899ba47
[   26.093047][  T299] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   26.118331][  T299] RSP: 002b:00007ffe6b103868 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   26.127771][  T299] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f58e899ba47
[   26.136913][  T299] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe6b103920
[   26.145488][  T299] RBP: 00007ffe6b103920 R08: 0000000000000000 R09: 0000000000000000
[   26.156654][  T299] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe6b104990
[   26.167537][  T299] R13: 0000555580fdc6c0 R14: 00007ffe6b104990 R15: 0000000000000001
[   26.176176][  T299]  </TASK>
[   26.179248][  T299] ---[ end trace 0000000000000000 ]---
[   26.185835][  T299] ==================================================================
[   26.194316][  T299] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   26.200488][  T299] Write of size 4 at addr 0000000000000170 by task syz-executor173/299
[   26.208920][  T299] 
[   26.211082][  T299] CPU: 0 PID: 299 Comm: syz-executor173 Tainted: G        W          6.1.118-syzkaller-00015-g770852bf7d99 #0
[   26.222700][  T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   26.233660][  T299] Call Trace:
[   26.237160][  T299]  <TASK>
[   26.240568][  T299]  dump_stack_lvl+0x151/0x1b7
[   26.245862][  T299]  ? nf_tcp_handle_invalid+0x3f1/0x3f1
[   26.251492][  T299]  ? _printk+0xd1/0x111
[   26.258376][  T299]  print_report+0xe1/0x4e0
[   26.263498][  T299]  ? __virt_addr_valid+0x59/0x2f0
[   26.269776][  T299]  ? kasan_addr_to_slab+0xd/0x80
[   26.276098][  T299]  ? ihold+0x20/0x60
[   26.280636][  T299]  kasan_report+0x13c/0x170
[   26.285488][  T299]  ? ihold+0x20/0x60
[   26.289293][  T299]  kasan_check_range+0x294/0x2a0
[   26.297275][  T299]  __kasan_check_write+0x14/0x20
[   26.303809][  T299]  ihold+0x20/0x60
[   26.309109][  T299]  vfs_rmdir+0x268/0x500
[   26.320401][  T299]  incfs_kill_sb+0x113/0x230
[   26.325865][  T299]  deactivate_locked_super+0xad/0x110
[   26.334430][  T299]  deactivate_super+0xbe/0xf0
[   26.340523][  T299]  cleanup_mnt+0x485/0x510
[   26.344846][  T299]  __cleanup_mnt+0x19/0x20
[   26.351534][  T299]  task_work_run+0x24d/0x2e0
[   26.358166][  T299]  ? task_work_cancel+0x2e0/0x2e0
[   26.364451][  T299]  ptrace_notify+0x29e/0x350
[   26.369540][  T299]  ? do_notify_parent+0xa20/0xa20
[   26.375798][  T299]  ? user_path_at_empty+0x14e/0x1a0
[   26.382155][  T299]  ? __x64_sys_umount+0x122/0x170
[   26.387289][  T299]  ? path_umount+0xe70/0xe70
[   26.393647][  T299]  syscall_exit_to_user_mode+0x99/0x130
[   26.399907][  T299]  do_syscall_64+0x47/0xb0
[   26.404241][  T299]  ? clear_bhb_loop+0x55/0xb0
[   26.408907][  T299]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.415739][  T299] RIP: 0033:0x7f58e899ba47
[   26.420768][  T299] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   26.447287][  T299] RSP: 002b:00007ffe6b103868 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   26.459664][  T299] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f58e899ba47
[   26.469212][  T299] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe6b103920
[   26.481417][  T299] RBP: 00007ffe6b103920 R08: 0000000000000000 R09: 0000000000000000
[   26.492190][  T299] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe6b104990
[   26.501513][  T299] R13: 0000555580fdc6c0 R14: 00007ffe6b104990 R15: 0000000000000001
[   26.513634][  T299]  </TASK>
[   26.517016][  T299] ==================================================================
[   26.527889][  T299] Disabling lock debugging due to kernel taint
[   26.534566][  T299] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   26.542084][  T299] #PF: supervisor write access in kernel mode
[   26.548257][  T299] #PF: error_code(0x0002) - not-present page
[   26.554265][  T299] PGD 0 P4D 0 
[   26.557630][  T299] Oops: 0002 [#1] PREEMPT SMP KASAN
[   26.562948][  T299] CPU: 0 PID: 299 Comm: syz-executor173 Tainted: G    B   W          6.1.118-syzkaller-00015-g770852bf7d99 #0
[   26.577462][  T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   26.591770][  T299] RIP: 0010:ihold+0x25/0x60
[   26.598562][  T299] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 41 57 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 70 cd ef 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 c4 5a a8
[   26.623307][  T299] RSP: 0018:ffffc90000dc7b70 EFLAGS: 00010246
[   26.630241][  T299] RAX: ffff88810fd00000 RBX: 0000000000000001 RCX: ffff88810fd00000
[   26.641481][  T299] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.650782][  T299] RBP: ffffc90000dc7b80 R08: ffffffff8144a503 R09: fffffbfff0f6e2fd
[   26.661955][  T299] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102466888d
[   26.672153][  T299] R13: ffff888123aeacc0 R14: 0000000000000000 R15: 1ffff1102475d59e
[   26.683358][  T299] FS:  0000555580fdb380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   26.693522][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.700012][  T299] CR2: 0000000000000170 CR3: 0000000125554000 CR4: 00000000003506b0
[   26.708505][  T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.718190][  T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.726246][  T299] Call Trace:
[   26.729474][  T299]  <TASK>
[   26.733333][  T299]  ? __die_body+0x62/0xb0
[   26.737888][  T299]  ? __die+0x7e/0x90
[   26.742224][  T299]  ? page_fault_oops+0x7f9/0xa90
[   26.747072][  T299]  ? vprintk_default+0x26/0x30
[   26.752542][  T299]  ? kernelmode_fixup_or_oops+0xd0/0xd0
[   26.758179][  T299]  ? add_taint+0x44/0xe0
[   26.762348][  T299]  ? panic+0x667/0x667
[   26.766398][  T299]  ? preempt_schedule_thunk+0x16/0x18
[   26.772148][  T299]  ? exc_page_fault+0x529/0x6d0
[   26.777028][  T299]  ? asm_exc_page_fault+0x27/0x30
[   26.782250][  T299]  ? add_taint+0x93/0xe0
[   26.786584][  T299]  ? ihold+0x25/0x60
[   26.790661][  T299]  vfs_rmdir+0x268/0x500
[   26.794758][  T299]  incfs_kill_sb+0x113/0x230
[   26.800499][  T299]  deactivate_locked_super+0xad/0x110
[   26.807347][  T299]  deactivate_super+0xbe/0xf0
[   26.811905][  T299]  cleanup_mnt+0x485/0x510
[   26.816456][  T299]  __cleanup_mnt+0x19/0x20
[   26.820794][  T299]  task_work_run+0x24d/0x2e0
[   26.825221][  T299]  ? task_work_cancel+0x2e0/0x2e0
[   26.830467][  T299]  ptrace_notify+0x29e/0x350
[   26.835816][  T299]  ? do_notify_parent+0xa20/0xa20
[   26.842391][  T299]  ? user_path_at_empty+0x14e/0x1a0
[   26.847769][  T299]  ? __x64_sys_umount+0x122/0x170
[   26.853546][  T299]  ? path_umount+0xe70/0xe70
[   26.859984][  T299]  syscall_exit_to_user_mode+0x99/0x130
[   26.866065][  T299]  do_syscall_64+0x47/0xb0
[   26.870983][  T299]  ? clear_bhb_loop+0x55/0xb0
[   26.881506][  T299]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.888094][  T299] RIP: 0033:0x7f58e899ba47
[   26.902283][  T299] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   26.934932][  T299] RSP: 002b:00007ffe6b103868 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   26.945513][  T299] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f58e899ba47
[   26.955728][  T299] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe6b103920
[   26.964641][  T299] RBP: 00007ffe6b103920 R08: 0000000000000000 R09: 0000000000000000
[   26.973907][  T299] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe6b104990
[   26.982643][  T299] R13: 0000555580fdc6c0 R14: 00007ffe6b104990 R15: 0000000000000001
[   26.991867][  T299]  </TASK>
[   26.994858][  T299] Modules linked in:
[   26.998609][  T299] CR2: 0000000000000170
[   27.002811][  T299] ---[ end trace 0000000000000000 ]---
[   27.008622][  T299] RIP: 0010:ihold+0x25/0x60
[   27.013806][  T299] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 41 57 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 70 cd ef 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 c4 5a a8
[   27.034638][  T299] RSP: 0018:ffffc90000dc7b70 EFLAGS: 00010246
[   27.040849][  T299] RAX: ffff88810fd00000 RBX: 0000000000000001 RCX: ffff88810fd00000
[   27.049226][  T299] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   27.059519][  T299] RBP: ffffc90000dc7b80 R08: ffffffff8144a503 R09: fffffbfff0f6e2fd
[   27.067813][  T299] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102466888d
[   27.075577][  T299] R13: ffff888123aeacc0 R14: 0000000000000000 R15: 1ffff1102475d59e
[   27.084245][  T299] FS:  0000555580fdb380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   27.094001][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.100581][  T299] CR2: 0000000000000170 CR3: 0000000125554000 CR4: 00000000003506b0
[   27.109990][  T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.118067][  T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.126625][  T299] Kernel panic - not syncing: Fatal exception
[   27.133388][  T299] Kernel Offset: disabled
[   27.137566][  T299] Rebooting in 86400 seconds..