random: sshd: uninitialized urandom read (32 bytes read, 106 bits of entropy available)
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: 1 PID: 3318 Comm: syzkaller322911 Not tainted 4.4.110-gdac1439 #20
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b57297c0 task.stack: ffff8800b4f10000
RIP: 0010:[<ffffffff8329b9f9>]  [<ffffffff8329b9f9>] __write_once_size include/linux/compiler.h:247 [inline]
RIP: 0010:[<ffffffff8329b9f9>]  [<ffffffff8329b9f9>] __hlist_del include/linux/list.h:619 [inline]
RIP: 0010:[<ffffffff8329b9f9>]  [<ffffffff8329b9f9>] hlist_del include/linux/list.h:626 [inline]
RIP: 0010:[<ffffffff8329b9f9>]  [<ffffffff8329b9f9>] __xfrm_policy_unlink+0x1a9/0x370 net/xfrm/xfrm_policy.c:1274
RSP: 0018:ffff8800b4f177f0  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8800b47bc400 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 1ffff1003b1ec138 RDI: ffff8800b47bc420
RBP: ffff8800b4f17828 R08: 0000000000000001 R09: ffffffff850cee60
R10: 0000000000000001 R11: 1ffff100169e2ece R12: ffff8800b47bc590
R13: ffff8801d8f609c0 R14: ffffffff846ee980 R15: 0000000000000000
FS:  00007f44f0cf7700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020d9efdf CR3: 000000000420c000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000000 0000000300000003 ffffffff846f0378 ffff8800b47bc400
 0000000000000003 ffffffff8336dab0 ffffffff82de99a0 ffff8800b4f17850
 ffffffff8329f9a9 ffff8800b6428000 ffff8800b64281c0 ffff8800b47bc400
Call Trace:
 [<ffffffff8329f9a9>] xfrm_policy_delete+0x49/0x90 net/xfrm/xfrm_policy.c:1298
 [<ffffffff82e00b48>] xfrm_sk_free_policy include/net/xfrm.h:1157 [inline]
 [<ffffffff82e00b48>] sk_common_release+0x218/0x300 net/core/sock.c:2706
 [<ffffffff8336cb15>] udp_lib_close+0x15/0x20 include/net/udp.h:190
 [<ffffffff831d0baa>] inet_release+0xfa/0x1d0 net/ipv4/af_inet.c:435
 [<ffffffff832f6460>] inet6_release+0x50/0x70 net/ipv6/af_inet6.c:424
 [<ffffffff82de984d>] sock_release+0x8d/0x1e0 net/socket.c:586
 [<ffffffff82de99b6>] sock_close+0x16/0x20 net/socket.c:1037
 [<ffffffff81522833>] __fput+0x233/0x6d0 fs/file_table.c:208
 [<ffffffff81522d55>] ____fput+0x15/0x20 fs/file_table.c:244
 [<ffffffff8118ba14>] task_work_run+0x104/0x180 kernel/task_work.c:115
 [<ffffffff81132e11>] exit_task_work include/linux/task_work.h:21 [inline]
 [<ffffffff81132e11>] do_exit+0x871/0x2a20 kernel/exit.c:755
 [<ffffffff81139288>] do_group_exit+0x108/0x320 kernel/exit.c:885
 [<ffffffff8115c755>] get_signal+0x565/0x1660 kernel/signal.c:2315
 [<ffffffff8100e7fb>] do_signal+0x8b/0x1d40 arch/x86/kernel/signal.c:712
 [<ffffffff81003602>] exit_to_usermode_loop+0x122/0x170 arch/x86/entry/common.c:247
 [<ffffffff81006545>] prepare_exit_to_usermode arch/x86/entry/common.c:282 [inline]
 [<ffffffff81006545>] syscall_return_slowpath+0x1b5/0x1f0 arch/x86/entry/common.c:347
 [<ffffffff8377575d>] int_ret_from_sys_call+0x25/0xa3
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bd 01 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 43 20 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 5d 01 00 00 4d 85 ff 4c 89 38 48 89 45 c8 74 
RIP  [<ffffffff8329b9f9>] __write_once_size include/linux/compiler.h:247 [inline]
RIP  [<ffffffff8329b9f9>] __hlist_del include/linux/list.h:619 [inline]
RIP  [<ffffffff8329b9f9>] hlist_del include/linux/list.h:626 [inline]
RIP  [<ffffffff8329b9f9>] __xfrm_policy_unlink+0x1a9/0x370 net/xfrm/xfrm_policy.c:1274
 RSP <ffff8800b4f177f0>
---[ end trace 0902b6599510aef2 ]---