divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 27 Comm: kworker/1:1 Not tainted 6.7.0-rc5-syzkaller-00042-g88035e5694a8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events_long flush_old_commits
RIP: 0010:do_journal_end+0x18fe/0x4b40 fs/reiserfs/journal.c:4090
Code: 28 84 c0 0f 85 ff 2b 00 00 4a 8d 5c 33 01 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 06 2c 00 00 41 8b 0f 48 89 d8 31 d2 <48> f7 f1 49 89 d4 48 8b 84 24 e8 00 00 00 42 80 3c 28 00 48 8b 9c
RSP: 0018:ffffc90000a2f880 EFLAGS: 00010246
RAX: 0000000000000003 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888078ccd000
RBP: ffffc90000a2faf0 R08: ffff888078ccdfff R09: 0000000000000000
R10: ffff888078ccd000 R11: ffffed100f199c00 R12: ffff8880796d9017
R13: dffffc0000000000 R14: 0000000000000002 R15: ffff8880796d9014
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f883a65e000 CR3: 00000000766f1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 reiserfs_sync_fs fs/reiserfs/super.c:78 [inline]
 flush_old_commits+0x211/0x2f0 fs/reiserfs/super.c:111
 process_one_work kernel/workqueue.c:2627 [inline]
 process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_journal_end+0x18fe/0x4b40 fs/reiserfs/journal.c:4090
Code: 28 84 c0 0f 85 ff 2b 00 00 4a 8d 5c 33 01 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 06 2c 00 00 41 8b 0f 48 89 d8 31 d2 <48> f7 f1 49 89 d4 48 8b 84 24 e8 00 00 00 42 80 3c 28 00 48 8b 9c
RSP: 0018:ffffc90000a2f880 EFLAGS: 00010246
RAX: 0000000000000003 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888078ccd000
RBP: ffffc90000a2faf0 R08: ffff888078ccdfff R09: 0000000000000000
R10: ffff888078ccd000 R11: ffffed100f199c00 R12: ffff8880796d9017
R13: dffffc0000000000 R14: 0000000000000002 R15: ffff8880796d9014
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f883a65e000 CR3: 00000000258d1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	28 84 c0 0f 85 ff 2b 	sub    %al,0x2bff850f(%rax,%rax,8)
   7:	00 00                	add    %al,(%rax)
   9:	4a 8d 5c 33 01       	lea    0x1(%rbx,%r14,1),%rbx
   e:	4c 89 e0             	mov    %r12,%rax
  11:	48 c1 e8 03          	shr    $0x3,%rax
  15:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  1a:	84 c0                	test   %al,%al
  1c:	0f 85 06 2c 00 00    	jne    0x2c28
  22:	41 8b 0f             	mov    (%r15),%ecx
  25:	48 89 d8             	mov    %rbx,%rax
  28:	31 d2                	xor    %edx,%edx
* 2a:	48 f7 f1             	div    %rcx <-- trapping instruction
  2d:	49 89 d4             	mov    %rdx,%r12
  30:	48 8b 84 24 e8 00 00 	mov    0xe8(%rsp),%rax
  37:	00
  38:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  3d:	48                   	rex.W
  3e:	8b                   	.byte 0x8b
  3f:	9c                   	pushf