./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1054999165
<...>
Warning: Permanently added '10.128.0.147' (ED25519) to the list of known hosts.
execve("./syz-executor1054999165", ["./syz-executor1054999165"], 0x7ffd05239400 /* 10 vars */) = 0
brk(NULL) = 0x555580b92000
brk(0x555580b92d00) = 0x555580b92d00
arch_prctl(ARCH_SET_FS, 0x555580b92380) = 0
set_tid_address(0x555580b92650) = 289
set_robust_list(0x555580b92660, 24) = 0
rseq(0x555580b92ca0, 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-executor1054999165", 4096) = 28
getrandom("\x38\x6c\x5b\x08\xdf\x21\xe4\x6e", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555580b92d00
brk(0x555580bb3d00) = 0x555580bb3d00
brk(0x555580bb4000) = 0x555580bb4000
mprotect(0x7fe2e989c000, 16384, PROT_READ) = 0
mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000
mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000
mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000
mkdir("./syzkaller.2G2w11", 0700) = 0
chmod("./syzkaller.2G2w11", 0777) = 0
chdir("./syzkaller.2G2w11") = 0
mkdir("./0", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555580b92650) = 291
./strace-static-x86_64: Process 291 attached
[pid 291] set_robust_list(0x555580b92660, 24) = 0
[pid 291] chdir("./0") = 0
[pid 291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 291] setpgid(0, 0) = 0
[pid 291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 291] write(3, "1000", 4) = 4
[pid 291] close(3) = 0
[pid 291] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 291] write(1, "executing program\n", 18) = 18
[pid 291] memfd_create("syzkaller", 0) = 3
[pid 291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe2e13e9000
[pid 291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[ 22.916877][ T24] audit: type=1400 audit(1740191198.600:66): avc: denied { execmem } for pid=289 comm="syz-executor105" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 22.936679][ T24] audit: type=1400 audit(1740191198.610:67): avc: denied { read write } for pid=289 comm="syz-executor105" name="loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid 291] munmap(0x7fe2e13e9000, 138412032) = 0
[pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 291] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 291] close(3) = 0
[pid 291] close(4) = 0
[pid 291] mkdir("./file0", 0777) = 0
[ 22.961310][ T24] audit: type=1400 audit(1740191198.610:68): avc: denied { open } for pid=289 comm="syz-executor105" path="/dev/loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 22.985435][ T24] audit: type=1400 audit(1740191198.610:69): avc: denied { ioctl } for pid=289 comm="syz-executor105" path="/dev/loop0" dev="devtmpfs" ino=111 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 23.041862][ T24] audit: type=1400 audit(1740191198.730:70): avc: denied { mounton } for pid=291 comm="syz-executor105" path="/root/syzkaller.2G2w11/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[ 23.043926][ T291] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: comm syz-executor105: inode #1: comm syz-executor105: iget: illegal inode #
[pid 291] mount("/dev/loop0", "./file0", "ext4", MS_NODEV|MS_NOEXEC|MS_NOSYMFOLLOW|MS_NOATIME|MS_I_VERSION|0x200, ",errors=continue") = 0
[pid 291] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 291] chdir("./file0") = 0
[pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 291] ioctl(4, LOOP_CLR_FD) = 0
[pid 291] close(4) = 0
[ 23.079845][ T291] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz-executor105: error while reading EA inode 1 err=-117
[ 23.092494][ T291] EXT4-fs (loop0): 1 orphan inode deleted
[ 23.098020][ T291] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[ 23.107112][ T24] audit: type=1400 audit(1740191198.790:71): avc: denied { mount } for pid=291 comm="syz-executor105" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[pid 291] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid 291] exit_group(0) = ?
[pid 291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=291, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555580b936f0 /* 4 entries */, 32768) = 112
umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/binderfs") = 0
umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0755, st_size=1024, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=1024, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555580b9b730 /* 5 entries */, 32768) = 144
umount2("./0/file0/lost+found", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file0/lost+found", {st_mode=S_IFBLK|S_ISVTX|0614, st_rdev=makedev(0, 0xe), ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/file0/lost+found") = 0
umount2("./0/file0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file0/file1", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/file0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/file0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_EMPTY_PATH) = 0
getdents64(5, 0x555580ba3770 /* 2 entries */, 32768) = 48
getdents64(5, 0x555580ba3770 /* 0 entries */, 32768) = 0
close(5) = 0
rmdir("./0/file0/file1") = 0
[ 23.133808][ T24] audit: type=1400 audit(1740191198.820:72): avc: denied { mounton } for pid=291 comm="syz-executor105" path="/root/syzkaller.2G2w11/0/file0/file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[ 23.156337][ T289] EXT4-fs error (device loop0): htree_dirblock_to_tree:1092: inode #2: block 13: comm syz-executor105: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0
[ 23.158806][ T24] audit: type=1400 audit(1740191198.820:73): avc: denied { write } for pid=291 comm="syz-executor105" name="file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[ 23.201302][ T24] audit: type=1400 audit(1740191198.820:74): avc: denied { add_name } for pid=291 comm="syz-executor105" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[ 23.201381][ T289] ------------[ cut here ]------------
[ 23.222554][ T24] audit: type=1400 audit(1740191198.820:75): avc: denied { create } for pid=291 comm="syz-executor105" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=dir permissive=1
[ 23.227924][ T289] kernel BUG at fs/namei.c:2786!
[ 23.252820][ T289] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[ 23.258664][ T289] CPU: 0 PID: 289 Comm: syz-executor105 Not tainted 5.10.234-syzkaller-00148-g6686f2996d23 #0
[ 23.268746][ T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 23.278654][ T289] RIP: 0010:may_delete+0x755/0x760
[ 23.283573][ T289] Code: 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c db fd ff ff 4c 89 ef e8 5c 30 f4 ff e9 ce fd ff ff e8 32 91 b6 ff 0f 0b e8 2b 91 b6 ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8
[ 23.303024][ T289] RSP: 0018:ffffc90000af7bb8 EFLAGS: 00010293
[ 23.308920][ T289] RAX: ffffffff81b42e35 RBX: ffff88811bb95470 RCX: ffff88811d2313c0
[ 23.316726][ T289] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
[ 23.324541][ T289] RBP: ffffc90000af7c38 R08: ffffffff81b42753 R09: 0000000000000003
[ 23.332353][ T289] R10: fffff5200015ef5c R11: dffffc0000000001 R12: 0000000000000001
[ 23.340162][ T289] R13: ffff88811bb95220 R14: ffff8881107db0d8 R15: dffffc0000000000
[ 23.347976][ T289] FS: 0000555580b92380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 23.356743][ T289] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 23.363194][ T289] CR2: 0000555580bab778 CR3: 000000010c226000 CR4: 00000000003506b0
[ 23.370990][ T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 23.378785][ T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 23.386602][ T289] Call Trace:
[ 23.389734][ T289] ? __die_body+0x62/0xb0
[ 23.393896][ T289] ? die+0x88/0xb0
[ 23.397450][ T289] ? do_trap+0x1a4/0x310
[ 23.401547][ T289] ? may_delete+0x755/0x760
[ 23.405958][ T289] ? handle_invalid_op+0x95/0xc0
[ 23.410731][ T289] ? may_delete+0x755/0x760
[ 23.415236][ T289] ? exc_invalid_op+0x32/0x50
[ 23.419725][ T289] ? asm_exc_invalid_op+0x12/0x20
[ 23.424587][ T289] ? may_delete+0x73/0x760
[ 23.428832][ T289] ? may_delete+0x755/0x760
[ 23.433181][ T289] ? may_delete+0x755/0x760
[ 23.437525][ T289] ? may_delete+0x755/0x760
[ 23.441857][ T289] vfs_rmdir+0x2c/0x3f0
[ 23.445847][ T289] incfs_kill_sb+0x108/0x220
[ 23.450273][ T289] deactivate_locked_super+0xad/0x110
[ 23.455481][ T289] deactivate_super+0xbe/0xf0
[ 23.460014][ T289] cleanup_mnt+0x45c/0x510
[ 23.464252][ T289] __cleanup_mnt+0x19/0x20
[ 23.468509][ T289] task_work_run+0x129/0x190
[ 23.472930][ T289] ptrace_notify+0x29e/0x350
[ 23.477357][ T289] ? do_notify_parent+0xa10/0xa10
[ 23.482215][ T289] ? user_path_at_empty+0x40/0x50
[ 23.487078][ T289] ? __x64_sys_umount+0x122/0x170
[ 23.491934][ T289] ? path_umount+0xea0/0xea0
[ 23.496363][ T289] syscall_exit_to_user_mode+0xf5/0x1a0
[ 23.501757][ T289] do_syscall_64+0x40/0x70
[ 23.505996][ T289] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 23.511728][ T289] RIP: 0033:0x7fe2e98293c7
[ 23.515984][ T289] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[ 23.535512][ T289] RSP: 002b:00007fff2623ae98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 23.543767][ T289] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fe2e98293c7
[ 23.551741][ T289] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2623af50
[ 23.559576][ T289] RBP: 00007fff2623af50 R08: 0000000000000000 R09: 0000000000000000
[ 23.567628][ T289] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff2623c040
[ 23.575547][ T289] R13: 0000555580b9b700 R14: 0000000000000001 R15: 431bde82d7b634db
[ 23.583358][ T289] Modules linked in:
[ 23.587381][ T289] ---[ end trace 4fcdbd4c89c93717 ]---
[ 23.592705][ T289] RIP: 0010:may_delete+0x755/0x760
[ 23.597588][ T289] Code: 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c db fd ff ff 4c 89 ef e8 5c 30 f4 ff e9 ce fd ff ff e8 32 91 b6 ff 0f 0b e8 2b 91 b6 ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8
[ 23.617131][ T289] RSP: 0018:ffffc90000af7bb8 EFLAGS: 00010293
[ 23.623068][ T289] RAX: ffffffff81b42e35 RBX: ffff88811bb95470 RCX: ffff88811d2313c0
[ 23.630876][ T289] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
[ 23.638670][ T289] RBP: ffffc90000af7c38 R08: ffffffff81b42753 R09: 0000000000000003
[ 23.646529][ T289] R10: fffff5200015ef5c R11: dffffc0000000001 R12: 0000000000000001
[ 23.654299][ T289] R13: ffff88811bb95220 R14: ffff8881107db0d8 R15: dffffc0000000000
[ 23.662155][ T289] FS: 0000555580b92380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 23.670892][ T289] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 23.677285][ T289] CR2: 0000555580bab778 CR3: 000000010c226000 CR4: 00000000003506b0
[ 23.685134][ T289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 23.692928][ T289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 23.700748][ T289] Kernel panic - not syncing: Fatal exception
[ 23.706862][ T289] Kernel Offset: disabled
[ 23.710995][ T289] Rebooting in 86400 seconds..