divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 5.7.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: wg-crypt-wg0 wg_packet_tx_worker RIP: 0010:tabledist.part.0+0x134/0x160 net/sched/sch_netem.c:333 Code: 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d c3 e8 83 a6 2a fb 48 81 eb 00 10 00 00 eb aa e8 75 a6 2a fb 8d 4c 2d 00 44 89 e8 31 d2 f1 49 29 ec 49 01 d4 eb c7 48 89 df e8 5a 6b 68 fb e9 13 ff ff RSP: 0018:ffffc90000df7598 EFLAGS: 00010246 RAX: 000000008ea637e3 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8648993b RDI: 0000000000000005 RBP: ffffffff80000000 R08: ffff8880a902e600 R09: ffffed1012455832 R10: ffff8880922ac18f R11: ffffed1012455831 R12: 0000000000000000 R13: 000000008ea637e3 R14: ffff8880922ac330 R15: ffff8880922ac000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5264deb8 CR3: 000000006e1ea000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tabledist net/sched/sch_netem.c:536 [inline] netem_enqueue+0x412/0x2da0 net/sched/sch_netem.c:536 __dev_xmit_skb net/core/dev.c:3710 [inline] __dev_queue_xmit+0x154a/0x30a0 net/core/dev.c:4021 neigh_hh_output include/net/neighbour.h:499 [inline] neigh_output include/net/neighbour.h:508 [inline] ip_finish_output2+0x17b7/0x2610 net/ipv4/ip_output.c:228 __ip_finish_output net/ipv4/ip_output.c:306 [inline] __ip_finish_output+0x5f3/0xbd0 net/ipv4/ip_output.c:288 ip_finish_output+0x34/0x1f0 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip_output+0x1fe/0x620 net/ipv4/ip_output.c:430 dst_output include/net/dst.h:435 [inline] ip_local_out+0xaf/0x1a0 net/ipv4/ip_output.c:125 iptunnel_xmit+0x619/0x9d0 net/ipv4/ip_tunnel_core.c:81 send4+0x4d2/0xdf0 drivers/net/wireguard/socket.c:85 wg_socket_send_skb_to_peer+0x192/0x220 drivers/net/wireguard/socket.c:174 wg_packet_create_data_done drivers/net/wireguard/send.c:252 [inline] wg_packet_tx_worker+0x312/0x9c0 drivers/net/wireguard/send.c:280 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268 worker_thread+0x96/0xe20 kernel/workqueue.c:2414 kthread+0x388/0x470 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 Modules linked in: ---[ end trace aa9c656b732992b7 ]--- RIP: 0010:tabledist.part.0+0x134/0x160 net/sched/sch_netem.c:333 Code: 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d c3 e8 83 a6 2a fb 48 81 eb 00 10 00 00 eb aa e8 75 a6 2a fb 8d 4c 2d 00 44 89 e8 31 d2 f1 49 29 ec 49 01 d4 eb c7 48 89 df e8 5a 6b 68 fb e9 13 ff ff RSP: 0018:ffffc90000df7598 EFLAGS: 00010246 RAX: 000000008ea637e3 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8648993b RDI: 0000000000000005 RBP: ffffffff80000000 R08: ffff8880a902e600 R09: ffffed1012455832 R10: ffff8880922ac18f R11: ffffed1012455831 R12: 0000000000000000 R13: 000000008ea637e3 R14: ffff8880922ac330 R15: ffff8880922ac000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5264deb8 CR3: 000000006e1ea000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400