divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8668 Comm: syz-executor878 Not tainted 5.13.0-rc2-next-20210518-syzkaller #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 02 2a 7e 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:ffffc90001e7f670 EFLAGS: 00010246 RAX: 00000000cb79eb60 RBX: ffff88801f679000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888021b42000 RDI: ffff888021b42074 RBP: ffff8880370a4330 R08: ffff888021b420d0 R09: 0000000000000000 R10: ffffffff83cf218d R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000080 R14: ffff8880370a4000 R15: 0000000000000000 FS: 00007fd2328c2700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c0 CR3: 00000000124f5000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __dev_xmit_skb net/core/dev.c:3899 [inline] __dev_queue_xmit+0x1845/0x3150 net/core/dev.c:4214 __netlink_deliver_tap_skb net/netlink/af_netlink.c:303 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:321 [inline] netlink_deliver_tap+0x9b5/0xbc0 net/netlink/af_netlink.c:334 netlink_deliver_tap_kernel net/netlink/af_netlink.c:343 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x5e5/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x84c/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x31/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x44aa49 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd2328c2318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004d04e8 RCX: 000000000044aa49 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00000000004d04e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000049f4d4 R13: 00007ffdccc99e7f R14: 00007fd2328c2400 R15: 0000000000022000 Modules linked in: ---[ end trace b8ed53e8a4f8e9de ]--- 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 02 2a 7e 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:ffffc90001e7f670 EFLAGS: 00010246 RAX: 00000000cb79eb60 RBX: ffff88801f679000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888021b42000 RDI: ffff888021b42074 RBP: ffff8880370a4330 R08: ffff888021b420d0 R09: 0000000000000000 R10: ffffffff83cf218d R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000080 R14: ffff8880370a4000 R15: 0000000000000000 FS: 00007fd2328c2700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c0 CR3: 00000000124f5000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400