random: sshd: uninitialized urandom read (32 bytes read, 109 bits of entropy available) netlink: 3816 bytes leftover after parsing attributes in process `syzkaller427698'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3325 at net/xfrm/xfrm_user.c:2172 xfrm_add_acquire+0x97f/0xd20 net/xfrm/xfrm_user.c:2172() BAD policy passed Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3325 Comm: syzkaller427698 Not tainted 4.4.107-g610c835 #12 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 63d16c5f83f9a6a9 ffff8801d0d8f390 ffffffff81d0457d ffffffff838429a0 ffff8801d0d8f468 ffffffff83d09540 0000000000000009 000000000000087c ffff8801d0d8f458 ffffffff8141774a 0000000041b58ab3 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] panic+0x1aa/0x388 kernel/panic.c:112 [] warn_slowpath_common+0x125/0x140 kernel/panic.c:455 [] warn_slowpath_fmt+0xc1/0x110 kernel/panic.c:471 [] xfrm_add_acquire+0x97f/0xd20 net/xfrm/xfrm_user.c:2172 [] xfrm_user_rcv_msg+0x41c/0x6b0 net/xfrm/xfrm_user.c:2525 [] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2305 [] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533 [] netlink_unicast_kernel net/netlink/af_netlink.c:1223 [inline] [] netlink_unicast+0x522/0x760 net/netlink/af_netlink.c:1249 [] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1803 [] sock_sendmsg_nosec net/socket.c:625 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:635 [] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962 [] __sys_sendmsg+0xd3/0x190 net/socket.c:1996 [] SYSC_sendmsg net/socket.c:2007 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2003 [] entry_SYSCALL_64_fastpath+0x16/0x76 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..