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: 2079 Comm: syz-executor550 Not tainted 4.4.162+ #119
task: ffff8801d4832f80 task.stack: ffff8801cf450000
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:ffff8801cf457970  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8800b66d8000 RCX: 0000000000000000
RDX: 000000000000000c RSI: ffffffff8247a7b6 RDI: 0000000000000060
RBP: ffff8801cf4579b0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8800b87f7640
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8800b87f7698
FS:  000000000142d880(0063) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020184000 CR3: 00000000b6cea000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8800b66d8088 ffff880000000001 ffff8800b66d8088 ffff8800b66d8000
 ffff8800b87f7640 dffffc0000000000 ffff8800b87f7698 0000000000000000
 ffff8801cf457a20 ffffffff821dd0fb ffff8800b66d8430 ffff8800b66d8188
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
 [<ffffffff827120a1>] entry_SYSCALL_64_fastpath+0x1e/0x9a
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 <ffff8801cf457970>
---[ end trace 0004a2ebffdd7b5d ]---