net_ratelimit: 20 callbacks suppressed
syz-executor.2: packet size is too short (0 <= 14)
syz-executor.5: packet size is too short (0 <= 14)
syz-executor.4: packet size is too short (0 <= 14)
syz-executor.1: packet size is too short (0 <= 14)
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff82336f00>] packet_lookup_frame.isra.50+0x10/0x50 net/packet/af_packet.c:499
PGD b0a01067 PUD b1ae0067 PMD 0 
Oops: 0000 [#1] [   72.688595] kobject: 'loop3' (ffff8800bac5b0a0): kobject_uevent_env
kobject: 'loop3' (ffff8800bac5b0a0): fill_kobj_path: path = '/devices/virtual/block/loop3'
PREEMPT SMP 
Modules linked in:
CPU: 0 PID: 8541 Comm: syz-executor.0 Not tainted 4.1.0 #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b0bfaa90 ti: ffff8800af758000 task.ti: ffff8800af758000
RIP: 0010:[<ffffffff82336f00>]  [<ffffffff82336f00>] packet_lookup_frame.isra.50+0x10/0x50 net/packet/af_packet.c:499
RSP: 0018:ffff8800af75bb70  EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff8800af75be28 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8800b09df000
RBP: ffff8800af75bc48 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8800b09df000 R15: ffff8800b8ace000
FS:  00007f842b733700(0000) GS:ffff88012c000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000af700000 CR4: 00000000001407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff82339052 ffff8800af75bc28 ffff8800b0bfb078 0000000081814300
 0000000000000000 ffff8800b09df6a0 0000000000000002 ffff8800af75bbc0
 000005ee00000000 ffff8800af750000 0000000000000000 ffff8800b09df000
Call Trace:
 [<ffffffff820d6365>] sock_sendmsg_nosec net/socket.c:613 [inline]
 [<ffffffff820d6365>] sock_sendmsg+0x35/0x40 net/socket.c:623
 [<ffffffff820d6b50>] ___sys_sendmsg+0x110/0x2d0 net/socket.c:1955
 [<ffffffff820d7e4f>] __sys_sendmmsg+0x8f/0x1a0 net/socket.c:2040
 [<ffffffff820d7f6d>] SYSC_sendmmsg net/socket.c:2068 [inline]
 [<ffffffff820d7f6d>] SyS_sendmmsg+0xd/0x20 net/socket.c:2063
 [<ffffffff8264c772>] system_call_fastpath+0x16/0x7a
Code: b3 f9 82 be b1 01 00 00 31 c0 48 89 e5 48 c7 c7 de 32 f8 82 e8 c2 5e e3 fe 0f 0b 41 89 d2 44 89 c0 31 d2 41 f7 f2 89 c0 0f af ca <48> 03 0c c6 48 89 c8 8b 97 3c 07 00 00 85 d2 74 05 83 fa 01 75 
RIP  [<ffffffff82336f00>] packet_lookup_frame.isra.50+0x10/0x50 net/packet/af_packet.c:499
 RSP <ffff8800af75bb70>
CR2: 0000000000000000
---[ end trace ab2c6ee37df673cd ]---