IPv6: NLM_F_REPLACE set, but no existing node found! WARNING: CPU: 0 PID: 22367 at net/ipv6/ip6_fib.c:1360 fib6_add+0x1106/0x14c0 net/ipv6/ip6_fib.c:1360 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 22367 Comm: syz-executor0 Not tainted 4.20.0-rc3+ #93 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 __warn.cold.8+0x20/0x45 kernel/panic.c:540 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969 RIP: 0010:fib6_add+0x1106/0x14c0 net/ipv6/ip6_fib.c:1360 Code: 08 49 8d bf a8 0c 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8d 03 00 00 4d 8b bf a8 0c 00 00 e9 15 fd ff ff e8 6a aa 9f fa <0f> 0b 48 8b 95 f0 fc ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea RSP: 0018:ffff88819e7f6e40 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff88819e7f7590 RCX: ffffc900065e4000 RDX: 000000000000932a RSI: ffffffff86dfe086 RDI: ffff8881c20b51a0 RBP: ffff88819e7f7198 R08: ffff888198fee280 R09: ffffed103799952d R10: ffffed103799952d R11: ffff8881bccca96f R12: 00000000fffffffe R13: ffff8881c20b5180 R14: ffff8881c3043f80 R15: 0000000000000000 __ip6_ins_rt+0x54/0x80 net/ipv6/route.c:1155 ip6_route_multipath_add+0x94f/0x18b0 net/ipv6/route.c:4391 inet6_rtm_newroute+0xe3/0x160 net/ipv6/route.c:4521 rtnetlink_rcv_msg+0x46a/0xc20 net/core/rtnetlink.c:4947 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4965 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007eff0c6b0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007eff0c6b16d4 R13: 00000000004c3f7d R14: 00000000004d6778 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..