divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 12131 Comm: syz-executor.4 Not tainted 5.10.117-syzkaller-00813-g0974b8411a58 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:netem_enqueue+0x29e6/0x3900 net/sched/sch_netem.c:516
Code: 45 8b 75 70 4c 89 6c 24 28 49 83 c5 74 4c 89 e9 48 c1 e9 03 8a 14 31 84 d2 48 8b 5c 24 10 0f 85 32 08 00 00 45 2b 75 00 31 d2 <41> f7 f6 49 01 d4 4c 89 e0 48 c1 e8 03 8a 04 30 84 c0 0f 85 45 08
RSP: 0018:ffffc90000bf74c0 EFLAGS: 00010246
RAX: 00000000e568b28f RBX: ffff888111316800 RCX: 1ffff1102371edc6
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff88811b8f6e30
RBP: ffffc90000bf75f0 R08: ffffffff8249afaa R09: 0000000000000003
R10: fffff5200017edfd R11: 1ffff9200017edfc R12: ffff88811118f480
R13: ffff88811b8f6e34 R14: 0000000000000000 R15: 0000000000000020
FS: 00007f0f55af5700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000240 CR3: 000000014ce23000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
netem_enqueue+0x12cb/0x3900 net/sched/sch_netem.c:483
__dev_xmit_skb net/core/dev.c:3823 [inline]
__dev_queue_xmit+0xdde/0x2bb0 net/core/dev.c:4136
dev_queue_xmit+0x17/0x20 net/core/dev.c:4204
packet_snd net/packet/af_packet.c:3022 [inline]
packet_sendmsg+0x4cfc/0x6880 net/packet/af_packet.c:3054
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg net/socket.c:672 [inline]
__sys_sendto+0x541/0x700 net/socket.c:1982
__do_sys_sendto net/socket.c:1994 [inline]
__se_sys_sendto net/socket.c:1990 [inline]
__x64_sys_sendto+0xe5/0x100 net/socket.c:1990
do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f0f5697f109
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0f55af5168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f0f56a91f60 RCX: 00007f0f5697f109
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f0f569d908d R08: 0000000020000240 R09: 0000000000000080
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec938adcf R14: 00007f0f55af5300 R15: 0000000000022000
Modules linked in:
---[ end trace 5cae68ec3b858d3e ]---
RIP: 0010:netem_enqueue+0x29e6/0x3900 net/sched/sch_netem.c:516
Code: 45 8b 75 70 4c 89 6c 24 28 49 83 c5 74 4c 89 e9 48 c1 e9 03 8a 14 31 84 d2 48 8b 5c 24 10 0f 85 32 08 00 00 45 2b 75 00 31 d2 <41> f7 f6 49 01 d4 4c 89 e0 48 c1 e8 03 8a 04 30 84 c0 0f 85 45 08
RSP: 0018:ffffc90000bf74c0 EFLAGS: 00010246
RAX: 00000000e568b28f RBX: ffff888111316800 RCX: 1ffff1102371edc6
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff88811b8f6e30
RBP: ffffc90000bf75f0 R08: ffffffff8249afaa R09: 0000000000000003
R10: fffff5200017edfd R11: 1ffff9200017edfc R12: ffff88811118f480
R13: ffff88811b8f6e34 R14: 0000000000000000 R15: 0000000000000020
FS: 00007f0f55af5700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000240 CR3: 000000014ce23000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 45 8b 75 70 mov 0x70(%r13),%r14d
4: 4c 89 6c 24 28 mov %r13,0x28(%rsp)
9: 49 83 c5 74 add $0x74,%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 5c 24 10 mov 0x10(%rsp),%rbx
1e: 0f 85 32 08 00 00 jne 0x856
24: 45 2b 75 00 sub 0x0(%r13),%r14d
28: 31 d2 xor %edx,%edx
* 2a: 41 f7 f6 div %r14d <-- trapping instruction
2d: 49 01 d4 add %rdx,%r12
30: 4c 89 e0 mov %r12,%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 45 08 test %eax,0x8(%rbp)