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: 0 PID: 2077 Comm: syz-executor361 Not tainted 4.4.159+ #106
task: ffff8800b7058000 task.stack: ffff8801d4e50000
RIP: 0010:[<ffffffff8246e92f>]  [<ffffffff8246e92f>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP: 0010:[<ffffffff8246e92f>]  [<ffffffff8246e92f>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP: 0010:[<ffffffff8246e92f>]  [<ffffffff8246e92f>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP: 0010:[<ffffffff8246e92f>]  [<ffffffff8246e92f>] udp_queue_rcv_skb+0x18f/0x1530 net/ipv4/udp.c:1520
RSP: 0018:ffff8801d4e57970  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8801d44c0000 RCX: 0000000000000000
RDX: 000000000000000c RSI: ffffffff8246e916 RDI: 0000000000000060
RBP: ffff8801d4e579b0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8800b8157780
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8800b81577d8
FS:  0000000001476880(0063) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 00000001d4dc7000 CR4: 00000000001606b0
Stack:
 ffff8801d44c0088 ffff880000000001 ffff8801d44c0088 ffff8801d44c0000
 ffff8800b8157780 dffffc0000000000 ffff8800b81577d8 0000000000000000
 ffff8801d4e57a20 ffffffff821d0a7b ffff8801d44c0430 ffff8801d44c0188
Call Trace:
 [<ffffffff821d0a7b>] sk_backlog_rcv include/net/sock.h:871 [inline]
 [<ffffffff821d0a7b>] __release_sock net/core/sock.c:2023 [inline]
 [<ffffffff821d0a7b>] release_sock+0x17b/0x500 net/core/sock.c:2473
 [<ffffffff8246cb92>] udp_sendmsg+0x1152/0x1c70 net/ipv4/udp.c:1107
 [<ffffffff824963a3>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
 [<ffffffff821c2e9b>] sock_sendmsg_nosec net/socket.c:638 [inline]
 [<ffffffff821c2e9b>] sock_sendmsg+0xbb/0x110 net/socket.c:648
 [<ffffffff821c70c0>] SYSC_sendto net/socket.c:1678 [inline]
 [<ffffffff821c70c0>] SyS_sendto+0x220/0x370 net/socket.c:1646
 [<ffffffff82705ca1>] entry_SYSCALL_64_fastpath+0x1e/0x9a
Code: 74 24 58 41 f6 c6 01 0f 85 39 08 00 00 e8 6a 85 e9 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  [<ffffffff8246e92f>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP  [<ffffffff8246e92f>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP  [<ffffffff8246e92f>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP  [<ffffffff8246e92f>] udp_queue_rcv_skb+0x18f/0x1530 net/ipv4/udp.c:1520
 RSP <ffff8801d4e57970>
---[ end trace 620303a2ce9ce0fe ]---