EXT4-fs error (device loop3): htree_dirblock_to_tree:1112: inode #2: block 13: comm syz-executor: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0
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kernel BUG at fs/namei.c:2941!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4409 Comm: syz-executor Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:may_delete+0x727/0x730 fs/namei.c:2941
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 82 fe ff ff 48 89 df e8 6a 2c f5 ff e9 75 fe ff ff e8 10 bd b5 ff 0f 0b e8 09 bd b5 ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 f1 bc
RSP: 0018:ffffc90000b97cc8 EFLAGS: 00010293
RAX: ffffffff81b3f9d7 RBX: ffff888111ca8550 RCX: ffff88811e9062c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000b97d20 R08: ffff88811aa40907 R09: 1ffff11023548120
R10: dffffc0000000000 R11: ffffed1023548121 R12: 1ffff110223950aa
R13: 0000000000000001 R14: ffff888129c898b0 R15: dffffc0000000000
FS:  00005555935c6500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555935f1988 CR3: 00000001157ac000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000000000d9
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_rmdir+0x2f/0x450 fs/namei.c:4138
 incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1989
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x44f/0x500 fs/namespace.c:1149
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1156
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb1f0f0d317
Code: a2 c7 05 dc 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffb1366138 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb1f0f0d317
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffb13661f0
RBP: 00007fffb13661f0 R08: 00007fffb13671f0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb13672e0
R13: 00007fb1f0fa2474 R14: 000000000003936d R15: 00007fffb13683b0
 </TASK>
Modules linked in:
---[ end trace a13debf36e65e465 ]---
RIP: 0010:may_delete+0x727/0x730 fs/namei.c:2941
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 82 fe ff ff 48 89 df e8 6a 2c f5 ff e9 75 fe ff ff e8 10 bd b5 ff 0f 0b e8 09 bd b5 ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 f1 bc
RSP: 0018:ffffc90000b97cc8 EFLAGS: 00010293
RAX: ffffffff81b3f9d7 RBX: ffff888111ca8550 RCX: ffff88811e9062c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000b97d20 R08: ffff88811aa40907 R09: 1ffff11023548120
R10: dffffc0000000000 R11: ffffed1023548121 R12: 1ffff110223950aa
R13: 0000000000000001 R14: ffff888129c898b0 R15: dffffc0000000000
FS:  00005555935c6500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555935f1988 CR3: 00000001157ac000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400