BUG: unable to handle page fault for address: ffffed101ee9de0c
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffee067 P4D 23ffee067 PUD 13fff5067 PMD 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5877 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:udf_close_lvid+0x152/0x990 fs/udf/super.c:2060
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 2a cf 78 07 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:ffffc90003267be0 EFLAGS: 00010a06
RAX: 1ffff1101ee9de0c RBX: ffff88805e50864b RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8afc6f60 RDI: ffff8880f74ef060
RBP: ffffc90003267cd8 R08: ffffffff8e4a212f R09: 1ffffffff1c94425
R10: dffffc0000000000 R11: fffffbfff1c94426 R12: ffff8880f74ef048
R13: ffff88801da65800 R14: 1ffff9200064cf88 R15: dffffc0000000000
FS: 00005555911da500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101ee9de0c CR3: 000000002f2a5000 CR4: 00000000003506f0
Call Trace:
<TASK>
udf_put_super+0xcc/0x160 fs/udf/super.c:2347
generic_shutdown_super+0x134/0x2b0 fs/super.c:693
kill_block_super+0x44/0x90 fs/super.c:1660
deactivate_locked_super+0x97/0x100 fs/super.c:481
cleanup_mnt+0x429/0x4c0 fs/namespace.c:1259
task_work_run+0x1ce/0x250 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xf6/0x180 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f27cb190a77
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:00007ffd5f8d6298 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f27cb213d7d RCX: 00007f27cb190a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd5f8d6350
RBP: 00007ffd5f8d6350 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd5f8d73e0
R13: 00007f27cb213d7d R14: 0000000000019252 R15: 00007ffd5f8d7420
</TASK>
Modules linked in:
CR2: ffffed101ee9de0c
---[ end trace 0000000000000000 ]---
RIP: 0010:udf_close_lvid+0x152/0x990 fs/udf/super.c:2060
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 2a cf 78 07 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:ffffc90003267be0 EFLAGS: 00010a06
RAX: 1ffff1101ee9de0c RBX: ffff88805e50864b RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8afc6f60 RDI: ffff8880f74ef060
RBP: ffffc90003267cd8 R08: ffffffff8e4a212f R09: 1ffffffff1c94425
R10: dffffc0000000000 R11: fffffbfff1c94426 R12: ffff8880f74ef048
R13: ffff88801da65800 R14: 1ffff9200064cf88 R15: dffffc0000000000
FS: 00005555911da500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101ee9de0c CR3: 000000002f2a5000 CR4: 00000000003506f0
----------------
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 2a cf 78 07 call 0x778cf48
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