divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7369 Comm: syz-executor.3 Not tainted 6.3.0-syzkaller-09882-gcec24b8b6bb8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:flush_commit_list.isra.0+0xa2f/0x1e70 fs/reiserfs/journal.c:1051 Code: c1 45 84 ca 0f 85 7a 0f 00 00 83 e2 07 40 38 d6 41 0f 9e c1 40 84 f6 0f 95 c2 41 84 d1 0f 85 61 0f 00 00 41 8b 7c 24 14 31 d2 <48> f7 f7 48 8b 44 24 38 8d 34 11 48 c1 e8 03 80 3c 18 00 0f 85 24 RSP: 0018:ffffc900031df680 EFLAGS: 00010246 RAX: 0000000000000287 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88804959d000 R08: 0000000000000004 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88806392b000 R13: 00000000000000d4 R14: 0000000000000100 R15: ffff888078892000 FS: 00007f87c163d700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000201fa000 CR3: 00000000536f0000 CR4: 0000000000350ee0 Call Trace: flush_journal_list.isra.0+0x24f/0x1f10 fs/reiserfs/journal.c:1391 flush_used_journal_lists.isra.0+0x330/0x580 fs/reiserfs/journal.c:1829 do_journal_end+0x33b8/0x4af0 fs/reiserfs/journal.c:4342 do_journal_begin_r+0x9f5/0x10e0 fs/reiserfs/journal.c:3113 journal_begin+0x166/0x400 fs/reiserfs/journal.c:3253 reiserfs_remount+0x78f/0x1650 fs/reiserfs/super.c:1559 legacy_reconfigure+0x119/0x180 fs/fs_context.c:633 reconfigure_super+0x40c/0xa30 fs/super.c:956 do_remount fs/namespace.c:2701 [inline] path_mount+0x1846/0x1e40 fs/namespace.c:3361 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f87c088d69a 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:00007f87c163cf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f87c088d69a RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 0000000000000000 RBP: 00007f87c163d020 R08: 00007f87c163d020 R09: 0000000001a484bc R10: 0000000001a484bc R11: 0000000000000202 R12: 00000000200000c0 R13: 0000000020000100 R14: 00007f87c163cfe0 R15: 0000000020000e80 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:flush_commit_list.isra.0+0xa2f/0x1e70 fs/reiserfs/journal.c:1051 Code: c1 45 84 ca 0f 85 7a 0f 00 00 83 e2 07 40 38 d6 41 0f 9e c1 40 84 f6 0f 95 c2 41 84 d1 0f 85 61 0f 00 00 41 8b 7c 24 14 31 d2 <48> f7 f7 48 8b 44 24 38 8d 34 11 48 c1 e8 03 80 3c 18 00 0f 85 24 RSP: 0018:ffffc900031df680 EFLAGS: 00010246 RAX: 0000000000000287 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88804959d000 R08: 0000000000000004 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88806392b000 R13: 00000000000000d4 R14: 0000000000000100 R15: ffff888078892000 FS: 00007f87c163d700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d256000 CR3: 00000000536f0000 CR4: 0000000000350ee0 ---------------- Code disassembly (best guess): 0: c1 45 84 ca roll $0xca,-0x7c(%rbp) 4: 0f 85 7a 0f 00 00 jne 0xf84 a: 83 e2 07 and $0x7,%edx d: 40 38 d6 cmp %dl,%sil 10: 41 0f 9e c1 setle %r9b 14: 40 84 f6 test %sil,%sil 17: 0f 95 c2 setne %dl 1a: 41 84 d1 test %dl,%r9b 1d: 0f 85 61 0f 00 00 jne 0xf84 23: 41 8b 7c 24 14 mov 0x14(%r12),%edi 28: 31 d2 xor %edx,%edx * 2a: 48 f7 f7 div %rdi <-- trapping instruction 2d: 48 8b 44 24 38 mov 0x38(%rsp),%rax 32: 8d 34 11 lea (%rcx,%rdx,1),%esi 35: 48 c1 e8 03 shr $0x3,%rax 39: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 3d: 0f .byte 0xf 3e: 85 .byte 0x85 3f: 24 .byte 0x24