FAT-fs (loop4): error, invalid access to FAT (entry 0xffff0000)
FAT-fs (loop4): Filesystem has been set read-only
------------[ cut here ]------------
kernel BUG at fs/namei.c:2786!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 276 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+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 10 24 f5 ff e9 d0 fd ff ff e8 86 34 bb ff 0f 0b e8 7f 34 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:ffffc90000bd7ca0 EFLAGS: 00010293
RAX: ffffffff81a87191 RBX: ffff88812c003550 RCX: ffff88811e74e2c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000bd7d20 R08: 0000000000000004 R09: 0000000000000003
R10: fffff5200017af78 R11: 1ffff9200017af78 R12: ffff88811bfdc860
R13: 1ffff110258006aa R14: ffff88812c003568 R15: ffff88810fdebbe0
FS:  000055557f2ab500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000005d03f CR3: 000000012428b000 CR4: 00000000003526b0
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+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbd856b21f7
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:00007ffdc2591008 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbd856b21f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdc25910c0
RBP: 00007ffdc25910c0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdc25921b0
R13: 00007fbd85733d7d R14: 000055557f2ab4a8 R15: 00007ffdc2593280
Modules linked in:
---[ end trace dd278b60875c5c2b ]---
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 10 24 f5 ff e9 d0 fd ff ff e8 86 34 bb ff 0f 0b e8 7f 34 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:ffffc90000bd7ca0 EFLAGS: 00010293
RAX: ffffffff81a87191 RBX: ffff88812c003550 RCX: ffff88811e74e2c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000bd7d20 R08: 0000000000000004 R09: 0000000000000003
R10: fffff5200017af78 R11: 1ffff9200017af78 R12: ffff88811bfdc860
R13: 1ffff110258006aa R14: ffff88812c003568 R15: ffff88810fdebbe0
FS:  000055557f2ab500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055bb83451650 CR3: 000000012428b000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400