divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3625 Comm: syz-executor358 Not tainted 5.19.0-rc6-syzkaller-00111-gb047602d579b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 RIP: 0010:netem_enqueue+0x1474/0x3550 net/sched/sch_netem.c:516 Code: 74 1f 4c 89 44 24 20 89 44 24 18 89 4c 24 10 e8 82 8d 44 fa 4c 8b 44 24 20 8b 44 24 18 8b 4c 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:ffffc9000305f3e0 EFLAGS: 00010246 RAX: 00000000f61adb27 RBX: ffff88807eec00a0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880758348c0 RDI: ffff888075834934 RBP: ffff88804b547330 R08: ffff888075834998 R09: 0000000000000000 R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000040 R14: ffff88804b547000 R15: 0000000000000000 FS: 00005555569ae300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020008000 CR3: 0000000070dc6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netem_enqueue+0x2048/0x3550 net/sched/sch_netem.c:483 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3785 __dev_xmit_skb net/core/dev.c:3874 [inline] __dev_queue_xmit+0x2093/0x3900 net/core/dev.c:4221 packet_snd net/packet/af_packet.c:3073 [inline] packet_sendmsg+0x21cb/0x5550 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x810 net/socket.c:2488 ___sys_sendmsg+0xf3/0x170 net/socket.c:2542 __sys_sendmmsg+0x195/0x470 net/socket.c:2628 __do_sys_sendmmsg net/socket.c:2657 [inline] __se_sys_sendmmsg net/socket.c:2654 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2654 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+0x63/0xcd RIP: 0033:0x7fc856167469 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 15 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8562fad78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc856167469 RDX: 0000000000000002 RSI: 0000000020007fc0 RDI: 0000000000000005 RBP: 0000000000000000 R08: 00007fc8562fada0 R09: 00007fc8562fada0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc8562fad9c R13: 00007fc8562faf50 R14: 00007fc8562fadb0 R15: 0000000000000000 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 44 24 18 89 4c 24 10 e8 82 8d 44 fa 4c 8b 44 24 20 8b 44 24 18 8b 4c 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:ffffc9000305f3e0 EFLAGS: 00010246 RAX: 00000000f61adb27 RBX: ffff88807eec00a0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880758348c0 RDI: ffff888075834934 RBP: ffff88804b547330 R08: ffff888075834998 R09: 0000000000000000 R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000040 R14: ffff88804b547000 R15: 0000000000000000 FS: 00005555569ae300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020008000 CR3: 0000000070dc6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 74 1f je 0x21 2: 4c 89 44 24 20 mov %r8,0x20(%rsp) 7: 89 44 24 18 mov %eax,0x18(%rsp) b: 89 4c 24 10 mov %ecx,0x10(%rsp) f: e8 82 8d 44 fa callq 0xfa448d96 14: 4c 8b 44 24 20 mov 0x20(%rsp),%r8 19: 8b 44 24 18 mov 0x18(%rsp),%eax 1d: 8b 4c 24 10 mov 0x10(%rsp),%ecx 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