EXT4-fs warning (device loop4): ext4_empty_dir:3147: inode #11: comm syz-executor: directory missing '.' ------------[ cut here ]------------ kernel BUG at fs/namei.c:2933! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4816 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:may_delete+0x701/0x710 fs/namei.c:2933 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 84 fe ff ff 48 89 df e8 10 50 f5 ff e9 77 fe ff ff e8 46 d4 b6 ff 0f 0b e8 3f d4 b6 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53 RSP: 0018:ffffc90000aa7b10 EFLAGS: 00010293 RAX: ffffffff81b1ea71 RBX: ffff8881120a5ee0 RCX: ffff88811daa3b40 RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 RBP: ffffc90000aa7b78 R08: 0000000000000004 R09: 0000000000000003 R10: fffff52000154f44 R11: 1ffff92000154f44 R12: dffffc0000000000 R13: 0000000000000001 R14: ffff88811235dbe0 R15: 1ffff11022414bdc FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb030a39000 CR3: 0000000126382000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vfs_rmdir+0x32/0x460 fs/namei.c:4130 incfs_kill_sb+0x105/0x220 fs/incfs/vfs.c:1989 deactivate_locked_super+0xa0/0x100 fs/super.c:335 deactivate_super+0xaf/0xe0 fs/super.c:366 cleanup_mnt+0x446/0x500 fs/namespace.c:1139 __cleanup_mnt+0x19/0x20 fs/namespace.c:1146 task_work_run+0x127/0x190 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xa7e/0x27a0 kernel/exit.c:889 do_group_exit+0x141/0x310 kernel/exit.c:1003 __do_sys_exit_group kernel/exit.c:1014 [inline] __se_sys_exit_group kernel/exit.c:1012 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1012 x64_sys_call+0x832/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7ff6e03eaec9 Code: Unable to access opcode bytes at RIP 0x7ff6e03eae9f. RSP: 002b:00007ffe52c96198 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007ff6e046de01 RCX: 00007ff6e03eaec9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000027 R08: 00007ffe52c93f36 R09: 00007ffe52c97450 R10: 000000000000000a R11: 0000000000000246 R12: 00007ffe52c97450 R13: 00007ff6e046dd7d R14: 00005555940374a8 R15: 00007ffe52c99610 Modules linked in: ---[ end trace 82ee26c888203a64 ]--- RIP: 0010:may_delete+0x701/0x710 fs/namei.c:2933 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 84 fe ff ff 48 89 df e8 10 50 f5 ff e9 77 fe ff ff e8 46 d4 b6 ff 0f 0b e8 3f d4 b6 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53 RSP: 0018:ffffc90000aa7b10 EFLAGS: 00010293 RAX: ffffffff81b1ea71 RBX: ffff8881120a5ee0 RCX: ffff88811daa3b40 RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 RBP: ffffc90000aa7b78 R08: 0000000000000004 R09: 0000000000000003 R10: fffff52000154f44 R11: 1ffff92000154f44 R12: dffffc0000000000 R13: 0000000000000001 R14: ffff88811235dbe0 R15: 1ffff11022414bdc FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200001000000 CR3: 000000000660f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400