syzkaller0: entered promiscuous mode
syzkaller0: entered allmulticast mode
------------[ cut here ]------------
WARNING: CPU: 1 PID: 9652 at ./include/linux/skbuff.h:3071 em_nbyte_match+0x2d8/0x3f0
Modules linked in:
CPU: 1 UID: 0 PID: 9652 Comm: syz.2.1636 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:em_nbyte_match+0x2d8/0x3f0
Code: 31 c0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 e7 a2 2d f8 90 0f 0b 90 e9 de fe ff ff e8 d9 a2 2d f8 90 <0f> 0b 90 e9 f7 fd ff ff 89 d1 80 e1 07 fe c1 38 c1 0f 8c 71 fd ff
RSP: 0018:ffffc900046c6fd8 EFLAGS: 00010287
RAX: ffffffff8995d107 RBX: ffff88816c9d2f00 RCX: 0000000000080000
RDX: ffffc9000abd1000 RSI: 00000000000000d7 RDI: 00000000000000d8
RBP: 000000000000ffff R08: ffff88811d97d700 R09: 0000000000000003
R10: 0000000000000002 R11: 0000000000000002 R12: dffffc0000000000
R13: 1ffff1102d93a5f6 R14: ffff88817271b880 R15: 1ffff1102e4e3710
FS:  00007f506a3bb6c0(0000) GS:ffff8882a9adc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30214ff8 CR3: 0000000111c44000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __tcf_em_tree_match+0x1d3/0x7b0
 basic_classify+0x115/0x2d0
 tcf_classify+0x769/0x1130
 multiq_enqueue+0x102/0x4d0
 dev_qdisc_enqueue+0x4e/0x260
 __dev_queue_xmit+0xf28/0x3e50
 packet_sendmsg+0x3eb6/0x50f0
 ____sys_sendmsg+0xa84/0xaf0
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1bd/0x2a0
 do_syscall_64+0xf0/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f506959c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f506a3bb028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5069815fa0 RCX: 00007f506959c819
RDX: 000000000004c00c RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f5069632c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5069816038 R14: 00007f5069815fa0 R15: 00007ffc13f83508
 </TASK>
