divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1278 Comm: syz-executor.3 Not tainted 5.16.0-rc2-next-20211125-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 62 83 61 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 <f7> f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03
RSP: 0018:ffffc9001940f4f0 EFLAGS: 00010246
RAX: 000000001de13678 RBX: ffff8880776e6c00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88807280d3c0 RDI: ffff88807280d434
RBP: ffff88807d596330 R08: ffff88807280d490 R09: 0000000000000000
R10: ffffffff83dfec3d R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000020 R14: ffff88807d596000 R15: 0000000000000000
FS:  00007f68d8fd2700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f68dbb70018 CR3: 000000007da2c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netem_enqueue+0x2048/0x3550 net/sched/sch_netem.c:483
 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3668
 __dev_xmit_skb net/core/dev.c:3752 [inline]
 __dev_queue_xmit+0x1f61/0x3620 net/core/dev.c:4077
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:303 [inline]
 __netlink_deliver_tap net/netlink/af_netlink.c:321 [inline]
 netlink_deliver_tap+0x9cb/0xc30 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:1314 [inline]
 netlink_unicast+0x5e5/0x7d0 net/netlink/af_netlink.c:1341
 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1912
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 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+0x44/0xae
RIP: 0033:0x7f68dba5cae9
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:00007f68d8fd2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f68dbb6ff60 RCX: 00007f68dba5cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000007
RBP: 00007f68dbab6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7ce99cef R14: 00007f68d8fd2300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace bdc4281837221e9f ]---
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 62 83 61 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 <f7> f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03
RSP: 0018:ffffc9001940f4f0 EFLAGS: 00010246
RAX: 000000001de13678 RBX: ffff8880776e6c00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88807280d3c0 RDI: ffff88807280d434
RBP: ffff88807d596330 R08: ffff88807280d490 R09: 0000000000000000
R10: ffffffff83dfec3d R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000020 R14: ffff88807d596000 R15: 0000000000000000
FS:  00007f68d8fd2700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f68dbb70018 CR3: 000000007da2c000 CR4: 00000000003506f0
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 4c 24 18          	mov    %ecx,0x18(%rsp)
   b:	89 44 24 10          	mov    %eax,0x10(%rsp)
   f:	e8 62 83 61 fa       	callq  0xfa618376
  14:	4c 8b 44 24 20       	mov    0x20(%rsp),%r8
  19:	8b 4c 24 18          	mov    0x18(%rsp),%ecx
  1d:	8b 44 24 10          	mov    0x10(%rsp),%eax
  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