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FAT-fs (loop2): error, invalid access to FAT (entry 0xffff0000)
FAT-fs (loop2): Filesystem has been set read-only
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kernel BUG at fs/namei.c:2794!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 352 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2794
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 f0 01 f5 ff e9 d0 fd ff ff e8 66 84 ba ff 0f 0b e8 5f 84 ba 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:ffffc90000c87ca0 EFLAGS: 00010293
RAX: ffffffff81aa3171 RBX: ffff88810d28f660 RCX: ffff88810d7c13c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000c87d20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000190f78 R12: ffff8881261f0860
R13: 1ffff11021a51ecc R14: ffff88810d28f678 R15: ffff88810d28f8b0
FS:  000055556d507500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe629033000 CR3: 00000001281be000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x2c/0x3e0 fs/namei.c:3841
 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+0x45b/0x510 fs/namespace.c:1123
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1130
 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: 0033:0x7f2f43d4d117
Code: a2 c7 05 7c c4 24 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:00007ffcd4609778 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2f43d4d117
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcd4609830
RBP: 00007ffcd4609830 R08: 00007ffcd460a830 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcd460a920
R13: 00007f2f43db571f R14: 000055556d5074e8 R15: 00007ffcd460b9f0
Modules linked in:
---[ end trace 33f9933dfcb692cd ]---
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2794
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 f0 01 f5 ff e9 d0 fd ff ff e8 66 84 ba ff 0f 0b e8 5f 84 ba 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:ffffc90000c87ca0 EFLAGS: 00010293
RAX: ffffffff81aa3171 RBX: ffff88810d28f660 RCX: ffff88810d7c13c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000c87d20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000190f78 R12: ffff8881261f0860
R13: 1ffff11021a51ecc R14: ffff88810d28f678 R15: ffff88810d28f8b0
FS:  000055556d507500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556d53a9c8 CR3: 00000001281be000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400