netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
BUG: unable to handle page fault for address: ffffed10183166b3
#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: 0 PID: 4509 Comm: syz-executor.0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 5e ee ec 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:ffffc9000318fc60 EFLAGS: 00010a02
RAX: 1ffff110183166b3 RBX: ffff88806ef2104b RCX: 1ffff92000631f6c
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880c18b3598
RBP: ffffc9000318fd58 R08: dffffc0000000000 R09: fffff52000631f45
R10: fffff52000631f45 R11: 1ffff92000631f44 R12: ffff8880c18b3580
R13: ffff888021f1a000 R14: 1ffff92000631f98 R15: dffffc0000000000
FS:  00005555601f5480(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed10183166b3 CR3: 0000000029b5e000 CR4: 00000000003506f0
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:1139
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f776f82ee57
Code: b0 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 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc10cc18d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f776f82ee57
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc10cc1990
RBP: 00007ffc10cc1990 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc10cc2a50
R13: 00007f776f8783b9 R14: 00000000000110df R15: 0000000000000006
 </TASK>
Modules linked in:
CR2: ffffed10183166b3
---[ end trace b4e9512dbfb42c00 ]---
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 5e ee ec 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:ffffc9000318fc60 EFLAGS: 00010a02
RAX: 1ffff110183166b3 RBX: ffff88806ef2104b RCX: 1ffff92000631f6c
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880c18b3598
RBP: ffffc9000318fd58 R08: dffffc0000000000 R09: fffff52000631f45
R10: fffff52000631f45 R11: 1ffff92000631f44 R12: ffff8880c18b3580
R13: ffff888021f1a000 R14: 1ffff92000631f98 R15: dffffc0000000000
FS:  00005555601f5480(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed10183166b3 CR3: 0000000029b5e000 CR4: 00000000003506f0
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 5e ee ec 06       	call   0x6ecee7c
  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