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: 2083 Comm: syz-executor409 Not tainted 4.4.162+ #117
task: ffff8801d4138000 task.stack: ffff8801d3d40000
RIP: 0010:[<ffffffff8246ea1f>]  [<ffffffff8246ea1f>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP: 0010:[<ffffffff8246ea1f>]  [<ffffffff8246ea1f>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP: 0010:[<ffffffff8246ea1f>]  [<ffffffff8246ea1f>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP: 0010:[<ffffffff8246ea1f>]  [<ffffffff8246ea1f>] udp_queue_rcv_skb+0x18f/0x1530 net/ipv4/udp.c:1520
RSP: 0018:ffff8801d3d47970  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8801d4308000 RCX: 0000000000000000
RDX: 000000000000000c RSI: ffffffff8246ea06 RDI: 0000000000000060
RBP: ffff8801d3d479b0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8801d5baa000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801d5baa058
FS:  00000000025e2880(0063) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000480 CR3: 00000001d6cad000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d4308088 ffff880100000001 ffff8801d4308088 ffff8801d4308000
 ffff8801d5baa000 dffffc0000000000 ffff8801d5baa058 0000000000000000
 ffff8801d3d47a20 ffffffff821d134b ffff8801d4308430 ffff8801d4308188
Call Trace:
 [<ffffffff821d134b>] sk_backlog_rcv include/net/sock.h:871 [inline]
 [<ffffffff821d134b>] __release_sock net/core/sock.c:2023 [inline]
 [<ffffffff821d134b>] release_sock+0x17b/0x500 net/core/sock.c:2473
 [<ffffffff8246cc82>] udp_sendmsg+0x1152/0x1c70 net/ipv4/udp.c:1107
 [<ffffffff82496493>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
 [<ffffffff821c376b>] sock_sendmsg_nosec net/socket.c:638 [inline]
 [<ffffffff821c376b>] sock_sendmsg+0xbb/0x110 net/socket.c:648
 [<ffffffff821c7990>] SYSC_sendto net/socket.c:1678 [inline]
 [<ffffffff821c7990>] SyS_sendto+0x220/0x370 net/socket.c:1646
 [<ffffffff827062e1>] entry_SYSCALL_64_fastpath+0x1e/0x9a
Code: 74 24 58 41 f6 c6 01 0f 85 39 08 00 00 e8 da 82 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  [<ffffffff8246ea1f>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP  [<ffffffff8246ea1f>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP  [<ffffffff8246ea1f>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP  [<ffffffff8246ea1f>] udp_queue_rcv_skb+0x18f/0x1530 net/ipv4/udp.c:1520
 RSP <ffff8801d3d47970>
---[ end trace cf3e3c8e250b3592 ]---