./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2455577722

<...>
Warning: Permanently added '10.128.0.209' (ED25519) to the list of known hosts.
execve("./syz-executor2455577722", ["./syz-executor2455577722"], 0x7ffde841e870 /* 10 vars */) = 0
brk(NULL)                               = 0x55557398e000
brk(0x55557398ee00)                     = 0x55557398ee00
arch_prctl(ARCH_SET_FS, 0x55557398e480) = 0
set_tid_address(0x55557398e750)         = 294
set_robust_list(0x55557398e760, 24)     = 0
rseq(0x55557398eda0, 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-executor2455577722", 4096) = 28
getrandom("\x74\xfa\x8d\x09\x4e\x9d\x97\xb7", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557398ee00
brk(0x5555739afe00)                     = 0x5555739afe00
brk(0x5555739b0000)                     = 0x5555739b0000
mprotect(0x7f358664f000, 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=0x7f35865a5d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f35865ada80}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f35865a5d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f35865ada80}, NULL, 8) = 0
mkdir("./syzkaller.lda9Ai", 0700)       = 0
chmod("./syzkaller.lda9Ai", 0777)       = 0
chdir("./syzkaller.lda9Ai")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557398e750) = 295
./strace-static-x86_64: Process 295 attached
[pid   295] set_robust_list(0x55557398e760, 24) = 0
[pid   295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   295] getppid()                   = 0
[pid   295] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   295] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   295] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   295] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   295] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   295] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   295] unshare(CLONE_NEWNS)        = 0
[pid   295] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   295] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   295] unshare(CLONE_NEWCGROUP)    = 0
[pid   295] unshare(CLONE_NEWUTS)       = 0
[pid   295] unshare(CLONE_SYSVSEM)      = 0
[pid   295] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   295] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   295] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   295] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   295] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   295] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   295] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   295] getpid()                    = 1
[pid   295] 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   295] 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   295] unshare(CLONE_NEWNET)       = 0
[pid   295] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   295] write(3, "0 65535", 7)      = 7
[pid   295] close(3)                    = 0
[pid   295] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   295] write(3, "100000", 6)       = 6
[pid   295] close(3)                    = 0
[pid   295] mkdir("./syz-tmp", 0777)    = 0
[pid   295] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   295] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   295] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   295] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   295] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[   21.598807][   T30] audit: type=1400 audit(1731056443.322:66): avc:  denied  { execmem } for  pid=294 comm="syz-executor245" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   21.618580][   T30] audit: type=1400 audit(1731056443.342:67): avc:  denied  { mounton } for  pid=295 comm="syz-executor245" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   295] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   295] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   295] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   295] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   295] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   295] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   295] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   295] 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   295] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   295] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   295] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   295] chdir("/")                  = 0
[pid   295] umount2("./pivot", MNT_DETACH) = 0
[pid   295] chroot("./newroot")         = 0
[pid   295] chdir("/")                  = 0
[pid   295] mkdir("/dev/binderfs", 0777) = 0
[pid   295] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   295] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   295] mkdir("./0", 0777)          = 0
[pid   295] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557398e750) = 2
./strace-static-x86_64: Process 297 attached
[pid   297] set_robust_list(0x55557398e760, 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] open_tree(AT_FDCWD, "", OPEN_TREE_CLONE|OPEN_TREE_CLOEXEC|AT_SYMLINK_NOFOLLOW|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|AT_RECURSIVE) = 3
[pid   297] move_mount(3, ".", AT_FDCWD, "./file0", 0) = 0
[pid   297] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   297] close(3)                    = 0
[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)
[   21.642578][   T30] audit: type=1400 audit(1731056443.362:68): avc:  denied  { mounton } for  pid=295 comm="syz-executor245" path="/root/syzkaller.lda9Ai/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   21.666792][   T30] audit: type=1400 audit(1731056443.362:69): avc:  denied  { mount } for  pid=295 comm="syz-executor245" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   21.684318][  T297] incfs: ino conflict with backing FS 8
[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   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   295] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   295] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   295] getdents64(3, 0x55557398f7f0 /* 6 entries */, 32768) = 176
[pid   295] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   295] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   295] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   295] getdents64(4, 0x555573997830 /* 2 entries */, 32768) = 48
[pid   295] getdents64(4, 0x555573997830 /* 0 entries */, 32768) = 0
[pid   295] close(4)                    = 0
[pid   295] rmdir("./0/.incomplete")    = 0
[pid   295] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   295] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   295] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   295] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   295] getdents64(4, 0x555573997830 /* 2 entries */, 32768) = 48
[pid   295] getdents64(4, 0x555573997830 /* 0 entries */, 32768) = 0
[pid   295] close(4)                    = 0
[pid   295] rmdir("./0/.index")         = 0
[   21.697216][   T30] audit: type=1400 audit(1731056443.372:70): avc:  denied  { mounton } for  pid=295 comm="syz-executor245" path="/root/syzkaller.lda9Ai/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
[   21.722392][   T30] audit: type=1400 audit(1731056443.372:71): avc:  denied  { mount } for  pid=295 comm="syz-executor245" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   21.722547][  T295] ------------[ cut here ]------------
[   21.744246][   T30] audit: type=1400 audit(1731056443.372:72): avc:  denied  { mounton } for  pid=295 comm="syz-executor245" path="/root/syzkaller.lda9Ai/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
[   21.744273][   T30] audit: type=1400 audit(1731056443.372:73): avc:  denied  { mounton } for  pid=295 comm="syz-executor245" path="/root/syzkaller.lda9Ai/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=479 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   21.749855][  T295] WARNING: CPU: 0 PID: 295 at fs/inode.c:307 drop_nlink+0xc1/0x110
[   21.775965][   T30] audit: type=1400 audit(1731056443.372:74): avc:  denied  { unmount } for  pid=295 comm="syz-executor245" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   21.803233][  T295] Modules linked in:
[   21.811067][   T30] audit: type=1400 audit(1731056443.392:75): avc:  denied  { mounton } for  pid=295 comm="syz-executor245" path="/dev/binderfs" dev="devtmpfs" ino=514 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   21.830509][  T295] 
[   21.859236][  T295] CPU: 0 PID: 295 Comm: syz-executor245 Not tainted 5.15.167-syzkaller-android13-5.15.167_r00 #0
[   21.869555][  T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   21.879529][  T295] RIP: 0010:drop_nlink+0xc1/0x110
[   21.884372][  T295] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 67 f5 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 6f a1 ae ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   21.903838][  T295] RSP: 0018:ffffc900009e7bc8 EFLAGS: 00010293
[   21.909726][  T295] RAX: ffffffff81c1b611 RBX: 0000000000000000 RCX: ffff88810cfc8000
[   21.917608][  T295] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   21.925472][  T295] RBP: ffffc900009e7bf0 R08: ffffffff81c1b594 R09: 0000000000000003
[   21.933289][  T295] R10: fffff5200013cf68 R11: dffffc0000000001 R12: dffffc0000000000
[   21.941082][  T295] R13: 1ffff110231e927d R14: ffff888118f493a0 R15: ffff888118f493e8
[   21.948873][  T295] FS:  000055557398e480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   21.957620][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.964065][  T295] CR2: 000055557399f838 CR3: 000000010c42c000 CR4: 00000000003506b0
[   21.971874][  T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   21.979694][  T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   21.987509][  T295] Call Trace:
[   21.990625][  T295]  <TASK>
[   21.993379][  T295]  ? show_regs+0x58/0x60
[   21.997457][  T295]  ? __warn+0x160/0x2f0
[   22.001477][  T295]  ? drop_nlink+0xc1/0x110
[   22.005702][  T295]  ? report_bug+0x3d9/0x5b0
[   22.010096][  T295]  ? drop_nlink+0xc1/0x110
[   22.014296][  T295]  ? handle_bug+0x41/0x70
[   22.018491][  T295]  ? exc_invalid_op+0x1b/0x50
[   22.022974][  T295]  ? asm_exc_invalid_op+0x1b/0x20
[   22.027832][  T295]  ? drop_nlink+0x44/0x110
[   22.032115][  T295]  ? drop_nlink+0xc1/0x110
[   22.036349][  T295]  ? drop_nlink+0xc1/0x110
[   22.040624][  T295]  ? drop_nlink+0xc1/0x110
[   22.044847][  T295]  shmem_rmdir+0x59/0x90
[   22.048950][  T295]  vfs_rmdir+0x324/0x470
[   22.053006][  T295]  incfs_kill_sb+0x113/0x230
[   22.057429][  T295]  deactivate_locked_super+0xad/0x110
[   22.062668][  T295]  deactivate_super+0xbe/0xf0
[   22.067154][  T295]  cleanup_mnt+0x45c/0x510
[   22.071426][  T295]  __cleanup_mnt+0x19/0x20
[   22.075658][  T295]  task_work_run+0x129/0x190
[   22.080112][  T295]  ptrace_notify+0x29e/0x350
[   22.084519][  T295]  ? do_notify_parent+0xa30/0xa30
[   22.089400][  T295]  ? user_path_at_empty+0x14e/0x1a0
[   22.094412][  T295]  ? __x64_sys_umount+0x122/0x170
[   22.099301][  T295]  ? path_umount+0xea0/0xea0
[   22.103784][  T295]  syscall_exit_to_user_mode+0xa3/0x160
[   22.109195][  T295]  do_syscall_64+0x47/0xb0
[   22.113411][  T295]  ? clear_bhb_loop+0x35/0x90
[   22.117923][  T295]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   22.123684][  T295] RIP: 0033:0x7f35865dc187
[   22.127913][  T295] 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
[   22.147446][  T295] RSP: 002b:00007ffd9c99a9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   22.155612][  T295] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f35865dc187
[   22.163432][  T295] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9c99aa60
[   22.171435][  T295] RBP: 00007ffd9c99aa60 R08: 0000000000000000 R09: 0000000000000000
[   22.179223][  T295] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd9c99bad0
[   22.187012][  T295] R13: 000055557398f7c0 R14: 431bde82d7b634db R15: 00007ffd9c99baf0
[   22.194850][  T295]  </TASK>
[   22.197689][  T295] ---[ end trace 64b87a60343784ca ]---
[   22.203054][  T295] ==================================================================
[   22.210878][  T295] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   22.216955][  T295] Write of size 4 at addr 0000000000000170 by task syz-executor245/295
[   22.225029][  T295] 
[   22.227195][  T295] CPU: 0 PID: 295 Comm: syz-executor245 Tainted: G        W         5.15.167-syzkaller-android13-5.15.167_r00 #0
[   22.238913][  T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   22.248895][  T295] Call Trace:
[   22.252019][  T295]  <TASK>
[   22.254799][  T295]  dump_stack_lvl+0x151/0x1c0
[   22.259306][  T295]  ? io_uring_drop_tctx_refs+0x190/0x190
[   22.264775][  T295]  ? _raw_spin_lock+0xa4/0x1b0
[   22.269375][  T295]  ? _raw_spin_trylock_bh+0x190/0x190
[   22.274680][  T295]  kasan_report+0x16f/0x1c0
[   22.279017][  T295]  ? ihold+0x20/0x60
[   22.282749][  T295]  ? ihold+0x20/0x60
[   22.286481][  T295]  kasan_check_range+0x293/0x2a0
[   22.291254][  T295]  __kasan_check_write+0x14/0x20
[   22.296029][  T295]  ihold+0x20/0x60
[   22.299587][  T295]  vfs_rmdir+0x201/0x470
[   22.303664][  T295]  incfs_kill_sb+0x113/0x230
[   22.308099][  T295]  deactivate_locked_super+0xad/0x110
[   22.313300][  T295]  deactivate_super+0xbe/0xf0
[   22.317813][  T295]  cleanup_mnt+0x45c/0x510
[   22.322064][  T295]  __cleanup_mnt+0x19/0x20
[   22.326316][  T295]  task_work_run+0x129/0x190
[   22.330750][  T295]  ptrace_notify+0x29e/0x350
[   22.335199][  T295]  ? do_notify_parent+0xa30/0xa30
[   22.340031][  T295]  ? user_path_at_empty+0x14e/0x1a0
[   22.345065][  T295]  ? __x64_sys_umount+0x122/0x170
[   22.349924][  T295]  ? path_umount+0xea0/0xea0
[   22.354349][  T295]  syscall_exit_to_user_mode+0xa3/0x160
[   22.359734][  T295]  do_syscall_64+0x47/0xb0
[   22.363983][  T295]  ? clear_bhb_loop+0x35/0x90
[   22.368497][  T295]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   22.374226][  T295] RIP: 0033:0x7f35865dc187
[   22.378566][  T295] 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
[   22.398131][  T295] RSP: 002b:00007ffd9c99a9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   22.406380][  T295] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f35865dc187
[   22.414219][  T295] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9c99aa60
[   22.421994][  T295] RBP: 00007ffd9c99aa60 R08: 0000000000000000 R09: 0000000000000000
[   22.429806][  T295] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd9c99bad0
[   22.437617][  T295] R13: 000055557398f7c0 R14: 431bde82d7b634db R15: 00007ffd9c99baf0
[   22.445434][  T295]  </TASK>
[   22.448294][  T295] ==================================================================
[   22.456190][  T295] Disabling lock debugging due to kernel taint
[   22.462437][  T295] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   22.470040][  T295] #PF: supervisor write access in kernel mode
[   22.475943][  T295] #PF: error_code(0x0002) - not-present page
[   22.481755][  T295] PGD 0 P4D 0 
[   22.484966][  T295] Oops: 0002 [#1] PREEMPT SMP KASAN
[   22.490005][  T295] CPU: 0 PID: 295 Comm: syz-executor245 Tainted: G    B   W         5.15.167-syzkaller-android13-5.15.167_r00 #0
[   22.501722][  T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   22.511612][  T295] RIP: 0010:ihold+0x25/0x60
[   22.515957][  T295] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 81 99 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 50 ed 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 04 9d ae
[   22.535396][  T295] RSP: 0018:ffffc900009e7c08 EFLAGS: 00010246
[   22.541295][  T295] RAX: ffff88810cfc8000 RBX: 0000000000000001 RCX: ffff88810cfc8000
[   22.549105][  T295] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   22.556915][  T295] RBP: ffffc900009e7c18 R08: ffffffff8141997b R09: 0000000000000003
[   22.564730][  T295] R10: fffffbfff0e9a04c R11: dffffc0000000001 R12: dffffc0000000000
[   22.572541][  T295] R13: ffff888121667110 R14: 0000000000000000 R15: 1ffff110242cce28
[   22.580350][  T295] FS:  000055557398e480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.589118][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.595539][  T295] CR2: 0000000000000170 CR3: 000000010c42c000 CR4: 00000000003506b0
[   22.603354][  T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.611197][  T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.618979][  T295] Call Trace:
[   22.622100][  T295]  <TASK>
[   22.624886][  T295]  ? __die_body+0x62/0xb0
[   22.629040][  T295]  ? __die+0x7e/0x90
[   22.632781][  T295]  ? page_fault_oops+0x7f9/0xa90
[   22.637552][  T295]  ? _raw_spin_unlock+0x4d/0x70
[   22.642239][  T295]  ? kernelmode_fixup_or_oops+0xd0/0xd0
[   22.647615][  T295]  ? __schedule+0xcd4/0x1590
[   22.652047][  T295]  ? exc_page_fault+0x510/0x7f0
[   22.656730][  T295]  ? asm_exc_page_fault+0x27/0x30
[   22.661588][  T295]  ? check_panic_on_warn+0x5b/0xb0
[   22.666536][  T295]  ? ihold+0x25/0x60
[   22.670267][  T295]  ? ihold+0x20/0x60
[   22.673999][  T295]  vfs_rmdir+0x201/0x470
[   22.678083][  T295]  incfs_kill_sb+0x113/0x230
[   22.682505][  T295]  deactivate_locked_super+0xad/0x110
[   22.687714][  T295]  deactivate_super+0xbe/0xf0
[   22.692231][  T295]  cleanup_mnt+0x45c/0x510
[   22.696479][  T295]  __cleanup_mnt+0x19/0x20
[   22.700733][  T295]  task_work_run+0x129/0x190
[   22.705158][  T295]  ptrace_notify+0x29e/0x350
[   22.709587][  T295]  ? do_notify_parent+0xa30/0xa30
[   22.714448][  T295]  ? user_path_at_empty+0x14e/0x1a0
[   22.719481][  T295]  ? __x64_sys_umount+0x122/0x170
[   22.724341][  T295]  ? path_umount+0xea0/0xea0
[   22.728767][  T295]  syscall_exit_to_user_mode+0xa3/0x160
[   22.734154][  T295]  do_syscall_64+0x47/0xb0
[   22.738399][  T295]  ? clear_bhb_loop+0x35/0x90
[   22.742912][  T295]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   22.748640][  T295] RIP: 0033:0x7f35865dc187
[   22.752894][  T295] 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
[   22.772339][  T295] RSP: 002b:00007ffd9c99a9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   22.780580][  T295] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f35865dc187
[   22.788395][  T295] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd9c99aa60
[   22.796207][  T295] RBP: 00007ffd9c99aa60 R08: 0000000000000000 R09: 0000000000000000
[   22.804022][  T295] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd9c99bad0
[   22.811911][  T295] R13: 000055557398f7c0 R14: 431bde82d7b634db R15: 00007ffd9c99baf0
[   22.819726][  T295]  </TASK>
[   22.822585][  T295] Modules linked in:
[   22.826336][  T295] CR2: 0000000000000170
[   22.830326][  T295] ---[ end trace 64b87a60343784cb ]---
[   22.835615][  T295] RIP: 0010:ihold+0x25/0x60
[   22.839954][  T295] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 81 99 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 50 ed 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 04 9d ae
[   22.859475][  T295] RSP: 0018:ffffc900009e7c08 EFLAGS: 00010246
[   22.865377][  T295] RAX: ffff88810cfc8000 RBX: 0000000000000001 RCX: ffff88810cfc8000
[   22.873189][  T295] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   22.880997][  T295] RBP: ffffc900009e7c18 R08: ffffffff8141997b R09: 0000000000000003
[   22.888812][  T295] R10: fffffbfff0e9a04c R11: dffffc0000000001 R12: dffffc0000000000
[   22.896636][  T295] R13: ffff888121667110 R14: 0000000000000000 R15: 1ffff110242cce28
[   22.904434][  T295] FS:  000055557398e480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.913199][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.919624][  T295] CR2: 0000000000000170 CR3: 000000010c42c000 CR4: 00000000003506b0
[   22.927435][  T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.935244][  T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.943067][  T295] Kernel panic - not syncing: Fatal exception
[   22.949174][  T295] Kernel Offset: disabled
[   22.953293][  T295] Rebooting in 86400 seconds..