divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8296 Comm: syz-executor.4 Not tainted 5.18.0-rc5-syzkaller-00006-g9050ba3a61a4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:netem_enqueue+0x1474/0x3550 net/sched/sch_netem.c:516 Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 d2 0e 4e fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 RSP: 0018:ffffc9000310f3e8 EFLAGS: 00010246 RAX: 000000005f82168d RBX: ffff8880560c98a8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880687d1280 RDI: ffff8880687d12f4 RBP: ffff8880791ef330 R08: ffff8880687d1350 R09: 0000000000000000 R10: ffffffff83f479bf R11: 0000000000000060 R12: 0000000000000001 R13: 0000000000000020 R14: ffff8880791ef000 R15: 0000000000000000 FS: 00007f32fc22c700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c0 CR3: 000000007c230000 CR4: 0000000000350ef0 Call Trace: netem_enqueue+0x2048/0x3550 net/sched/sch_netem.c:483 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3727 __dev_xmit_skb net/core/dev.c:3816 [inline] __dev_queue_xmit+0x2038/0x3920 net/core/dev.c:4141 packet_snd net/packet/af_packet.c:3063 [inline] packet_sendmsg+0x2272/0x54d0 net/packet/af_packet.c:3094 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:725 ____sys_sendmsg+0x32b/0x800 net/socket.c:2413 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467 __sys_sendmmsg+0x195/0x470 net/socket.c:2553 __do_sys_sendmmsg net/socket.c:2582 [inline] __se_sys_sendmmsg net/socket.c:2579 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f32fb0890e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f32fc22c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f32fb19bf60 RCX: 00007f32fb0890e9 RDX: 0000000000000002 RSI: 0000000020002480 RDI: 0000000000000003 RBP: 00007f32fb0e308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4615df2f R14: 00007f32fc22c300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:netem_enqueue+0x1474/0x3550 net/sched/sch_netem.c:516 Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 d2 0e 4e fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 RSP: 0018:ffffc9000310f3e8 EFLAGS: 00010246 RAX: 000000005f82168d RBX: ffff8880560c98a8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880687d1280 RDI: ffff8880687d12f4 RBP: ffff8880791ef330 R08: ffff8880687d1350 R09: 0000000000000000 R10: ffffffff83f479bf R11: 0000000000000060 R12: 0000000000000001 R13: 0000000000000020 R14: ffff8880791ef000 R15: 0000000000000000 FS: 00007f32fc22c700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c0 CR3: 000000007c230000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 74 1f je 0x21 2: 4c 89 44 24 20 mov %r8,0x20(%rsp) 7: 89 4c 24 18 mov %ecx,0x18(%rsp) b: 89 44 24 10 mov %eax,0x10(%rsp) f: e8 d2 0e 4e fa callq 0xfa4e0ee6 14: 4c 8b 44 24 20 mov 0x20(%rsp),%r8 19: 8b 4c 24 18 mov 0x18(%rsp),%ecx 1d: 8b 44 24 10 mov 0x10(%rsp),%eax 21: 48 8b 34 24 mov (%rsp),%rsi 25: 31 d2 xor %edx,%edx 27: 2b 4e 74 sub 0x74(%rsi),%ecx * 2a: f7 f1 div %ecx <-- trapping instruction 2c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 33: fc ff df 36: 48 01 d3 add %rdx,%rbx 39: 48 89 d9 mov %rbx,%rcx 3c: 48 c1 e9 03 shr $0x3,%rcx