UDF-fs: error (device loop3): udf_verify_fi: directory (ino 1376) has entry at pos 0 with incorrect tag 0
UDF-fs: error (device loop3): udf_verify_fi: directory (ino 1376) has entry at pos 0 with incorrect tag 0
BUG: unable to handle page fault for address: ffffed10185c4916
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffef067 P4D 23ffef067 PUD 13fff6067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4291 Comm: syz-executor Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:udf_close_lvid+0x14e/0x990 fs/udf/super.c:2099
Code: 0f 84 f7 00 00 00 4c 89 6c 24 20 49 8d bd c0 00 00 00 48 89 7c 24 38 31 f6 e8 de d9 e4 06 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 07 05 00 00 4c 89 74 24 40 41 c6 44 24
RSP: 0018:ffffc90002e7fb40 EFLAGS: 00010a02
RAX: 1ffff110185c4916 RBX: ffff888069c3104b RCX: 1ffff920005cff48
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880c2e248b0
RBP: ffffc90002e7fc28 R08: dffffc0000000000 R09: fffff520005cff21
R10: fffff520005cff21 R11: 1ffff920005cff20 R12: ffff8880c2e24898
R13: ffff88802555ac00 R14: 1ffff920005cff74 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed10185c4916 CR3: 000000005d36f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_put_super+0xc8/0x160 fs/udf/super.c:2386
 generic_shutdown_super+0x130/0x300 fs/super.c:475
 kill_block_super+0x7c/0xe0 fs/super.c:1427
 deactivate_locked_super+0x93/0xf0 fs/super.c:335
 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1143
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x616/0x20a0 kernel/exit.c:874
 do_group_exit+0x12e/0x300 kernel/exit.c:996
 __do_sys_exit_group kernel/exit.c:1007 [inline]
 __se_sys_exit_group kernel/exit.c:1005 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005
 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: 0033:0x7f7e49ffd969
Code: Unable to access opcode bytes at RIP 0x7f7e49ffd93f.
RSP: 002b:00007ffc25b13428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f7e4a07f90f RCX: 00007f7e49ffd969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000010 R08: 00007ffc25b111c6 R09: 00007ffc25b146e0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc25b146e0
R13: 00007f7e4a07f89d R14: 00005555937c04a8 R15: 00007ffc25b157b0
 </TASK>
Modules linked in:
CR2: ffffed10185c4916
---[ end trace 7f25afb8e8b83601 ]---
RIP: 0010:udf_close_lvid+0x14e/0x990 fs/udf/super.c:2099
Code: 0f 84 f7 00 00 00 4c 89 6c 24 20 49 8d bd c0 00 00 00 48 89 7c 24 38 31 f6 e8 de d9 e4 06 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 07 05 00 00 4c 89 74 24 40 41 c6 44 24
RSP: 0018:ffffc90002e7fb40 EFLAGS: 00010a02
RAX: 1ffff110185c4916 RBX: ffff888069c3104b RCX: 1ffff920005cff48
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880c2e248b0
RBP: ffffc90002e7fc28 R08: dffffc0000000000 R09: fffff520005cff21
R10: fffff520005cff21 R11: 1ffff920005cff20 R12: ffff8880c2e24898
R13: ffff88802555ac00 R14: 1ffff920005cff74 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed10185c4916 CR3: 000000005d36f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	0f 84 f7 00 00 00    	je     0xfd
   6:	4c 89 6c 24 20       	mov    %r13,0x20(%rsp)
   b:	49 8d bd c0 00 00 00 	lea    0xc0(%r13),%rdi
  12:	48 89 7c 24 38       	mov    %rdi,0x38(%rsp)
  17:	31 f6                	xor    %esi,%esi
  19:	e8 de d9 e4 06       	call   0x6e4d9fc
  1e:	49 8d 7c 24 18       	lea    0x18(%r12),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 07 05 00 00    	jne    0x53e
  37:	4c 89 74 24 40       	mov    %r14,0x40(%rsp)
  3c:	41                   	rex.B
  3d:	c6                   	.byte 0xc6
  3e:	44                   	rex.R
  3f:	24                   	.byte 0x24