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EXT4-fs error (device loop2): htree_dirblock_to_tree:1092: 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:2786!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 350 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2786
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 60 24 f5 ff e9 d0 fd ff ff e8 26 37 bb ff 0f 0b e8 1f 37 bb 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:ffffc90000c97cb8 EFLAGS: 00010293
RAX: ffffffff81a86bb1 RBX: ffff888100432bb0 RCX: ffff88810d2d0000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000c97d38 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52000192f7c R11: 1ffff92000192f7c R12: ffff88812088f7b8
R13: 1ffff11020086576 R14: ffff888100432bc8 R15: ffff8881004329c0
FS:  000055558c875500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558c8a0528 CR3: 00000001291b7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x2c/0x3e0 fs/namei.c:3833
 incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1973
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1114
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1121
 task_work_run+0x127/0x190 kernel/task_work.c:189
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0x68/0x90 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9ed059ef17
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe3c8f96a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9ed059ef17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3c8f9760
RBP: 00007ffe3c8f9760 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe3c8fa850
R13: 00007f9ed0620c05 R14: 000000000000699d R15: 00007ffe3c8fb920
Modules linked in:
---[ end trace ba280855916111da ]---
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2786
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 60 24 f5 ff e9 d0 fd ff ff e8 26 37 bb ff 0f 0b e8 1f 37 bb 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:ffffc90000c97cb8 EFLAGS: 00010293
RAX: ffffffff81a86bb1 RBX: ffff888100432bb0 RCX: ffff88810d2d0000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000c97d38 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52000192f7c R11: 1ffff92000192f7c R12: ffff88812088f7b8
R13: 1ffff11020086576 R14: ffff888100432bc8 R15: ffff8881004329c0
FS:  000055558c875500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558c8a0528 CR3: 00000001291b7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400