divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8955 Comm: syz-executor.4 Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:netem_enqueue+0x2982/0x3800 net/sched/sch_netem.c:516
Code: 44 8b 63 70 48 89 5c 24 20 4c 8d 6b 74 4c 89 e9 48 c1 e9 03 8a 14 31 84 d2 48 8b 4c 24 10 0f 85 e3 07 00 00 45 2b 65 00 31 d2 <41> f7 f4 49 01 d7 4c 89 f8 48 c1 e8 03 8a 04 30 84 c0 0f 85 fb 07
RSP: 0018:ffffc9000293f380 EFLAGS: 00010246
RAX: 000000001514cc5e RBX: ffff8880727c0c80 RCX: ffff888088294000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff8880727c0cf0
RBP: ffffc9000293f4b0 R08: ffffffff8412e097 R09: fffffbfff1bfd13e
R10: fffffbfff1bfd13e R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880727c0cf4 R14: 0000000000000008 R15: ffff88806517f400
FS:  00007fed15a37700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bf24000 CR3: 000000006bd73000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netem_enqueue+0x132c/0x3800 net/sched/sch_netem.c:483
 dev_qdisc_enqueue net/core/dev.c:3785 [inline]
 __dev_xmit_skb net/core/dev.c:3869 [inline]
 __dev_queue_xmit+0xd71/0x35c0 net/core/dev.c:4194
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:303 [inline]
 __netlink_deliver_tap net/netlink/af_netlink.c:321 [inline]
 netlink_deliver_tap+0x5f5/0x880 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:1318 [inline]
 netlink_unicast+0x7ea/0x9f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0xa20/0xe40 net/netlink/af_netlink.c:1916
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x5b9/0x910 net/socket.c:2409
 ___sys_sendmsg net/socket.c:2463 [inline]
 __sys_sendmsg+0x280/0x370 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fed184c1ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fed15a37188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fed185d4f60 RCX: 00007fed184c1ae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 000000000000000a
RBP: 00007fed1851bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb9586aaf R14: 00007fed15a37300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 59b8628335d24b2d ]---
RIP: 0010:netem_enqueue+0x2982/0x3800 net/sched/sch_netem.c:516
Code: 44 8b 63 70 48 89 5c 24 20 4c 8d 6b 74 4c 89 e9 48 c1 e9 03 8a 14 31 84 d2 48 8b 4c 24 10 0f 85 e3 07 00 00 45 2b 65 00 31 d2 <41> f7 f4 49 01 d7 4c 89 f8 48 c1 e8 03 8a 04 30 84 c0 0f 85 fb 07
RSP: 0018:ffffc9000293f380 EFLAGS: 00010246
RAX: 000000001514cc5e RBX: ffff8880727c0c80 RCX: ffff888088294000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff8880727c0cf0
RBP: ffffc9000293f4b0 R08: ffffffff8412e097 R09: fffffbfff1bfd13e
R10: fffffbfff1bfd13e R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880727c0cf4 R14: 0000000000000008 R15: ffff88806517f400
FS:  00007fed15a37700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bf24000 CR3: 000000006bd73000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	44 8b 63 70          	mov    0x70(%rbx),%r12d
   4:	48 89 5c 24 20       	mov    %rbx,0x20(%rsp)
   9:	4c 8d 6b 74          	lea    0x74(%rbx),%r13
   d:	4c 89 e9             	mov    %r13,%rcx
  10:	48 c1 e9 03          	shr    $0x3,%rcx
  14:	8a 14 31             	mov    (%rcx,%rsi,1),%dl
  17:	84 d2                	test   %dl,%dl
  19:	48 8b 4c 24 10       	mov    0x10(%rsp),%rcx
  1e:	0f 85 e3 07 00 00    	jne    0x807
  24:	45 2b 65 00          	sub    0x0(%r13),%r12d
  28:	31 d2                	xor    %edx,%edx
* 2a:	41 f7 f4             	div    %r12d <-- trapping instruction
  2d:	49 01 d7             	add    %rdx,%r15
  30:	4c 89 f8             	mov    %r15,%rax
  33:	48 c1 e8 03          	shr    $0x3,%rax
  37:	8a 04 30             	mov    (%rax,%rsi,1),%al
  3a:	84 c0                	test   %al,%al
  3c:	0f                   	.byte 0xf
  3d:	85 fb                	test   %edi,%ebx
  3f:	07                   	(bad)