request_module: runaway loop modprobe net-pf-10-proto-15 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=3846 comm=syzkaller759731 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4002 at net/xfrm/xfrm_policy.c:786 xfrm_policy_insert+0x6ff/0xda0 net/xfrm/xfrm_policy.c:786 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 4002 Comm: syzkaller759731 Not tainted 4.9.81-g1a93831 #33 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d694f3a8 ffffffff81d94e69 ffffffff83a48080 ffff8801d694f480 ffffffff83f42a00 ffffffff833bf29f 0000000000000009 ffff8801d694f470 ffffffff8142f691 0000000041b58ab3 ffffffff8418b0a8 ffffffff8142f4d5 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bc/0x3a8 kernel/panic.c:179 [] __warn+0x1c4/0x1e0 kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] xfrm_policy_insert+0x6ff/0xda0 net/xfrm/xfrm_policy.c:786 [] xfrm_add_policy+0x38f/0x660 net/xfrm/xfrm_user.c:1546 [] xfrm_user_rcv_msg+0x40d/0x6a0 net/xfrm/xfrm_user.c:2525 [] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2351 [] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533 [] netlink_unicast_kernel net/netlink/af_netlink.c:1275 [inline] [] netlink_unicast+0x511/0x750 net/netlink/af_netlink.c:1301 [] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847 [] sock_sendmsg_nosec net/socket.c:635 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:645 [] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969 [] __sys_sendmsg+0xd6/0x190 net/socket.c:2003 [] SYSC_sendmsg net/socket.c:2014 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2010 [] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282 [] entry_SYSCALL_64_after_swapgs+0x47/0xc5 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..