divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 13741 Comm: syz-executor.3 Not tainted 6.4.0-syzkaller-11478-gd528014517f2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:flush_commit_list+0xcef/0x1bf0 fs/reiserfs/journal.c:1068 Code: df 42 0f b6 04 28 84 c0 0f 85 45 02 00 00 48 89 e8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 51 02 00 00 41 8b 0f 48 89 d8 31 d2 <48> f7 f1 48 89 d3 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 RSP: 0018:ffffc9001a127160 EFLAGS: 00010246 RAX: 0000000000000107 RBX: 0000000000000107 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff888049699017 R08: ffff88802bb4a41f R09: 1ffff11005769483 R10: dffffc0000000000 R11: ffffed1005769484 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88802187a000 R15: ffff888049699014 FS: 00007efd6cb6a700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002019d000 CR3: 00000000292c2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: flush_journal_list+0x2a8/0x1c70 fs/reiserfs/journal.c:1391 flush_used_journal_lists+0x1256/0x15d0 fs/reiserfs/journal.c:1829 do_journal_end+0x39fb/0x4780 do_journal_begin_r+0x970/0x1020 journal_begin+0x14c/0x360 fs/reiserfs/journal.c:3258 reiserfs_fill_super+0x1853/0x2620 fs/reiserfs/super.c:2104 mount_bdev+0x276/0x3b0 fs/super.c:1391 legacy_get_tree+0xef/0x190 fs/fs_context.c:611 vfs_get_tree+0x8c/0x270 fs/super.c:1519 do_new_mount+0x28f/0xae0 fs/namespace.c:3335 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7efd6be8d8ba Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007efd6cb69f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000001126 RCX: 00007efd6be8d8ba RDX: 00000000200000c0 RSI: 0000000020000040 RDI: 00007efd6cb69fe0 RBP: 00007efd6cb6a020 R08: 00007efd6cb6a020 R09: 0000000000008010 R10: 0000000000008010 R11: 0000000000000202 R12: 00000000200000c0 R13: 0000000020000040 R14: 00007efd6cb69fe0 R15: 0000000020000300 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:flush_commit_list+0xcef/0x1bf0 fs/reiserfs/journal.c:1068 Code: df 42 0f b6 04 28 84 c0 0f 85 45 02 00 00 48 89 e8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 51 02 00 00 41 8b 0f 48 89 d8 31 d2 <48> f7 f1 48 89 d3 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 RSP: 0018:ffffc9001a127160 EFLAGS: 00010246 RAX: 0000000000000107 RBX: 0000000000000107 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff888049699017 R08: ffff88802bb4a41f R09: 1ffff11005769483 R10: dffffc0000000000 R11: ffffed1005769484 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88802187a000 R15: ffff888049699014 FS: 00007efd6cb6a700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110f2a1d12 CR3: 00000000292c2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: df 42 0f filds 0xf(%rdx) 3: b6 04 mov $0x4,%dh 5: 28 84 c0 0f 85 45 02 sub %al,0x245850f(%rax,%rax,8) c: 00 00 add %al,(%rax) e: 48 89 e8 mov %rbp,%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 51 02 00 00 jne 0x273 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: 48 89 d3 mov %rdx,%rbx 30: 49 83 c6 18 add $0x18,%r14 34: 4c 89 f0 mov %r14,%rax 37: 48 c1 e8 03 shr $0x3,%rax 3b: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)