divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8698 Comm: syz-executor451 Not tainted 5.11.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:netem_enqueue+0x1470/0x3510 net/sched/sch_netem.c:516 Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 26 43 93 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:ffffc90001ebf588 EFLAGS: 00010246 RAX: 00000000a187fba5 RBX: ffff888020914000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888024d77140 RDI: ffff888024d771b4 RBP: ffff88801b863330 R08: ffff888024d77210 R09: 0000000000000000 R10: ffffffff83bc3fbd R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000080 R14: ffff88801b863000 R15: 0000000000000000 FS: 0000000001e7c880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200000c0 CR3: 0000000017fb5000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netem_enqueue+0x209b/0x3510 net/sched/sch_netem.c:483 __dev_xmit_skb net/core/dev.c:3807 [inline] __dev_queue_xmit+0x1913/0x2dd0 net/core/dev.c:4119 __netlink_deliver_tap_skb net/netlink/af_netlink.c:295 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:313 [inline] netlink_deliver_tap+0x92e/0xb70 net/netlink/af_netlink.c:326 netlink_deliver_tap_kernel net/netlink/af_netlink.c:335 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x5e5/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2345 ___sys_sendmsg+0xf3/0x170 net/socket.c:2399 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2432 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x443f89 Code: e8 6c 05 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffea3713a58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443f89 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007ffea3713a60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000001250b R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace da7db51bc5112898 ]--- RIP: 0010:netem_enqueue+0x1470/0x3510 net/sched/sch_netem.c:516 Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 26 43 93 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:ffffc90001ebf588 EFLAGS: 00010246 RAX: 00000000a187fba5 RBX: ffff888020914000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888024d77140 RDI: ffff888024d771b4 RBP: ffff88801b863330 R08: ffff888024d77210 R09: 0000000000000000 R10: ffffffff83bc3fbd R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000080 R14: ffff88801b863000 R15: 0000000000000000 FS: 0000000001e7c880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200000c0 CR3: 0000000017fb5000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400