random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available)
random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available)
random: nonblocking pool is initialized
device lo entered promiscuous mode
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
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3846 Comm: syzkaller757896 Not tainted 4.4.128-gbd23e3a #20
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d8d74800 task.stack: ffff8801c6f70000
RIP: 0010:[<ffffffff832cf9ef>]  [<ffffffff832cf9ef>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP: 0010:[<ffffffff832cf9ef>]  [<ffffffff832cf9ef>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP: 0010:[<ffffffff832cf9ef>]  [<ffffffff832cf9ef>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP: 0010:[<ffffffff832cf9ef>]  [<ffffffff832cf9ef>] udp_queue_rcv_skb+0x18f/0x1570 net/ipv4/udp.c:1517
RSP: 0018:ffff8801c6f77930  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8801c6f98000 RCX: 1ffff100396ea25b
RDX: 000000000000000c RSI: ffffffff832cf9d6 RDI: 0000000000000060
RBP: ffff8801c6f77970 R08: ffffffff85362570 R09: 0000000000000001
R10: 0000000000000000 R11: ffff8801d8d74800 R12: ffff8801cb751280
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cb7512d8
FS:  0000000001740880(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020319ff0 CR3: 00000001cef88000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801c6f98088 ffff880100000001 ffff8801c6f98088 ffff8801c6f98000
 ffff8801cb751280 dffffc0000000000 ffff8801cb7512d8 0000000000000000
 ffff8801c6f779e0 ffffffff82f28f7b ffff8801c6f98430 ffff8801c6f98188
Call Trace:
 [<ffffffff82f28f7b>] sk_backlog_rcv include/net/sock.h:871 [inline]
 [<ffffffff82f28f7b>] __release_sock net/core/sock.c:2023 [inline]
 [<ffffffff82f28f7b>] release_sock+0x17b/0x500 net/core/sock.c:2473
 [<ffffffff832cd830>] udp_sendmsg+0x12b0/0x1bb0 net/ipv4/udp.c:1105
 [<ffffffff832fd7a3>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
 [<ffffffff82f1ba9c>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82f1ba9c>] sock_sendmsg+0xcc/0x110 net/socket.c:635
 [<ffffffff82f1c77c>] SYSC_sendto+0x21c/0x370 net/socket.c:1665
 [<ffffffff82f1ee00>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff838be765>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: 74 24 58 41 f6 c6 01 0f 85 a6 07 00 00 e8 ea 17 08 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 25 0e 00 00 41 f6 46 60 04 
RIP  [<ffffffff832cf9ef>] __xfrm_policy_check2 include/net/xfrm.h:1070 [inline]
RIP  [<ffffffff832cf9ef>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
RIP  [<ffffffff832cf9ef>] xfrm4_policy_check include/net/xfrm.h:1081 [inline]
RIP  [<ffffffff832cf9ef>] udp_queue_rcv_skb+0x18f/0x1570 net/ipv4/udp.c:1517
 RSP <ffff8801c6f77930>
---[ end trace 9b4854a99fd95fff ]---