loop1: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 0 PID: 20948 Comm: syz-executor.1 Not tainted 6.2.0-rc4-syzkaller-00031-g6e50979a9c87 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:crc_itu_t+0x107/0x2b0 lib/crc-itu-t.c:60
Code: 00 00 00 fc ff df b8 02 00 00 00 48 29 d8 48 89 44 24 08 48 8b 14 24 49 89 d7 66 0f 1f 84 00 00 00 00 00 4c 89 f8 48 c1 e8 03 <0f> b6 04 30 84 c0 0f 85 b1 00 00 00 42 0f b6 44 2a ff 41 0f b7 ce
RSP: 0018:ffffc9000567f7b0 EFLAGS: 00010203
RAX: 0000000000000004 RBX: 0000000000000096 RCX: 0000000000000002
RDX: 0000000000000026 RSI: dffffc0000000000 RDI: 0000000000000001
RBP: 00000000000000bc R08: ffffffff8443ca89 R09: ffff888081134c03
R10: ffffed1010226981 R11: 1ffff11010226980 R12: 0000000000000096
R13: 0000000000000001 R14: 000000000000a489 R15: 0000000000000026
FS:  00007fdcd59fb700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c027cc3000 CR3: 000000002a281000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_write_fi+0x5c7/0xc10 fs/udf/namei.c:113
 udf_delete_entry fs/udf/namei.c:577 [inline]
 udf_rename+0x8e2/0x1450 fs/udf/namei.c:1173
 vfs_rename+0xd53/0x1130 fs/namei.c:4779
 do_renameat2+0xaad/0x12d0 fs/namei.c:4930
 __do_sys_rename fs/namei.c:4976 [inline]
 __se_sys_rename fs/namei.c:4974 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:4974
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdcd4c8c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdcd59fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fdcd4dabf80 RCX: 00007fdcd4c8c0c9
RDX: 0000000000000000 RSI: 0000000020000380 RDI: 0000000020000340
RBP: 00007fdcd4ce7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7e62c3cf R14: 00007fdcd59fb300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:crc_itu_t+0x107/0x2b0 lib/crc-itu-t.c:60
Code: 00 00 00 fc ff df b8 02 00 00 00 48 29 d8 48 89 44 24 08 48 8b 14 24 49 89 d7 66 0f 1f 84 00 00 00 00 00 4c 89 f8 48 c1 e8 03 <0f> b6 04 30 84 c0 0f 85 b1 00 00 00 42 0f b6 44 2a ff 41 0f b7 ce
RSP: 0018:ffffc9000567f7b0 EFLAGS: 00010203
RAX: 0000000000000004 RBX: 0000000000000096 RCX: 0000000000000002
RDX: 0000000000000026 RSI: dffffc0000000000 RDI: 0000000000000001
RBP: 00000000000000bc R08: ffffffff8443ca89 R09: ffff888081134c03
R10: ffffed1010226981 R11: 1ffff11010226980 R12: 0000000000000096
R13: 0000000000000001 R14: 000000000000a489 R15: 0000000000000026
FS:  00007fdcd59fb700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5ceabad988 CR3: 000000002a281000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 5 bytes skipped:
   0:	df b8 02 00 00 00    	fistpll 0x2(%rax)
   6:	48 29 d8             	sub    %rbx,%rax
   9:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
   e:	48 8b 14 24          	mov    (%rsp),%rdx
  12:	49 89 d7             	mov    %rdx,%r15
  15:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  1c:	00 00
  1e:	4c 89 f8             	mov    %r15,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
* 25:	0f b6 04 30          	movzbl (%rax,%rsi,1),%eax <-- trapping instruction
  29:	84 c0                	test   %al,%al
  2b:	0f 85 b1 00 00 00    	jne    0xe2
  31:	42 0f b6 44 2a ff    	movzbl -0x1(%rdx,%r13,1),%eax
  37:	41 0f b7 ce          	movzwl %r14w,%ecx