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: 3676 Comm: syz-executor0 Not tainted 4.4.157+ #101
task: ffff8800b93117c0 task.stack: ffff8801d6740000
RIP: 0010:[<ffffffff8258fbaf>]  [<ffffffff8258fbaf>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP: 0010:[<ffffffff8258fbaf>]  [<ffffffff8258fbaf>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP: 0010:[<ffffffff8258fbaf>]  [<ffffffff8258fbaf>] xfrm6_policy_check include/net/xfrm.h:1086 [inline]
RIP: 0010:[<ffffffff8258fbaf>]  [<ffffffff8258fbaf>] udpv6_queue_rcv_skb+0x18f/0x1510 net/ipv6/udp.c:634
RSP: 0018:ffff8801d67478d0  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8800b8e08000 RCX: 0000000000000000
RDX: 000000000000000c RSI: ffffffff8258fb96 RDI: 0000000000000060
RBP: ffff8801d6747910 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8800ba345000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8800ba345058
FS:  00007f31e9309700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
CR2: 00000000004cbfb0 CR3: 00000000b79b3000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 00000001b8e08088 ffff8800ba345000 ffff8800b8e08088 ffff8800b8e08000
 ffff8800ba345000 dffffc0000000000 ffff8800ba345058 0000000000000000
 ffff8801d6747980 ffffffff82168d3b ffff8800b8e08430 ffff8800b8e08188
Call Trace:
 [<ffffffff82168d3b>] sk_backlog_rcv include/net/sock.h:871 [inline]
 [<ffffffff82168d3b>] __release_sock net/core/sock.c:2023 [inline]
 [<ffffffff82168d3b>] release_sock+0x17b/0x500 net/core/sock.c:2473
 [<ffffffff8258d307>] udpv6_sendmsg+0x917/0x24c0 net/ipv6/udp.c:1364
 [<ffffffff82426413>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
 [<ffffffff8215b17b>] sock_sendmsg_nosec net/socket.c:638 [inline]
 [<ffffffff8215b17b>] sock_sendmsg+0xbb/0x110 net/socket.c:648
 [<ffffffff8215f380>] SYSC_sendto net/socket.c:1678 [inline]
 [<ffffffff8215f380>] SyS_sendto+0x220/0x370 net/socket.c:1646
 [<ffffffff82690f61>] entry_SYSCALL_64_fastpath+0x1e/0x9a
Code: 74 24 58 41 f6 c6 01 0f 85 24 08 00 00 e8 ea 51 d6 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 d0 0e 00 00 41 f6 46 60 04 
RIP  [<ffffffff8258fbaf>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP  [<ffffffff8258fbaf>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP  [<ffffffff8258fbaf>] xfrm6_policy_check include/net/xfrm.h:1086 [inline]
RIP  [<ffffffff8258fbaf>] udpv6_queue_rcv_skb+0x18f/0x1510 net/ipv6/udp.c:634
 RSP <ffff8801d67478d0>
general protection fault: 0000 [#2] [   39.351586] ---[ end trace 1ba7604c49ead1e5 ]---