kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 2094 Comm: syz-executor117 Not tainted 4.4.162+ #9
task: ffff8800b7000000 task.stack: ffff8801d4298000
RIP: 0010:[<ffffffff8247a7cf>]  [<ffffffff8247a7cf>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP: 0010:[<ffffffff8247a7cf>]  [<ffffffff8247a7cf>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP: 0010:[<ffffffff8247a7cf>]  [<ffffffff8247a7cf>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP: 0010:[<ffffffff8247a7cf>]  [<ffffffff8247a7cf>] udp_queue_rcv_skb+0x18f/0x1530 net/ipv4/udp.c:1520
RSP: 0018:ffff8801d429f8f8  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8800b6558000 RCX: 0000000000000000
RDX: 000000000000000c RSI: ffffffff8247a7b6 RDI: 0000000000000060
RBP: ffff8801d429f938 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8800b7b74780
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8800b7b747d8
FS:  0000000000000000(0000) GS:ffff8801db700000(0063) knlGS:0000000008625840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020184000 CR3: 00000000b8249000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8800b6558088 ffff880000000001 ffff8800b6558088 ffff8800b6558000
 ffff8800b7b74780 dffffc0000000000 ffff8800b7b747d8 0000000000000000
 ffff8801d429f9a8 ffffffff821dd0fb ffff8800b6558430 ffff8800b6558188
Call Trace:
 [<ffffffff821dd0fb>] sk_backlog_rcv include/net/sock.h:871 [inline]
 [<ffffffff821dd0fb>] __release_sock net/core/sock.c:2023 [inline]
 [<ffffffff821dd0fb>] release_sock+0x17b/0x500 net/core/sock.c:2473
 [<ffffffff82478a32>] udp_sendmsg+0x1152/0x1c70 net/ipv4/udp.c:1107
 [<ffffffff824a2243>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
 [<ffffffff821cf51b>] sock_sendmsg_nosec net/socket.c:638 [inline]
 [<ffffffff821cf51b>] sock_sendmsg+0xbb/0x110 net/socket.c:648
 [<ffffffff821d3740>] SYSC_sendto net/socket.c:1678 [inline]
 [<ffffffff821d3740>] SyS_sendto+0x220/0x370 net/socket.c:1646
 [<ffffffff8100629e>] do_syscall_32_irqs_on arch/x86/entry/common.c:396 [inline]
 [<ffffffff8100629e>] do_fast_syscall_32+0x31e/0xa80 arch/x86/entry/common.c:463
 [<ffffffff82713810>] sysenter_flags_fixed+0xd/0x1a
Code: 74 24 58 41 f6 c6 01 0f 85 39 08 00 00 e8 2a c5 e8 fe 49 83 e6 fe 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 60 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 01 0f 8e d1 0e 00 00 41 f6 46 60 04 
RIP  [<ffffffff8247a7cf>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP  [<ffffffff8247a7cf>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP  [<ffffffff8247a7cf>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP  [<ffffffff8247a7cf>] udp_queue_rcv_skb+0x18f/0x1530 net/ipv4/udp.c:1520
 RSP <ffff8801d429f8f8>
---[ end trace 6980aca41371460a ]---