IPv6: Can't replace route, no match found IPv6: Can't replace route, no match found kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 4779 Comm: syz-executor4 Not tainted 4.14.0-rc4+ #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801c0c50500 task.stack: ffff8801d00a8000 Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable RIP: 0010:ip6_setup_cork+0x274/0x15c0 net/ipv6/ip6_output.c:1168 RSP: 0018:ffff8801d00af550 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: ffff8801d00af748 RCX: 0000000000000010 RDX: 0000000000000002 RSI: ffffffff842c30b9 RDI: 0000000000000014 RBP: ffff8801d00af620 R08: ffff8801ce22c8c0 R09: ffff8801d00afb10 R10: ffff8801c0c50500 R11: 0000000000000000 R12: ffff8801d00afab0 R13: ffff8801d00afb10 R14: 0000000000000000 R15: ffff8801ca5e9780 FS: 00007fe483fba700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f58ac679000 CR3: 00000001d34c1000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_make_skb+0x282/0x530 net/ipv6/ip6_output.c:1729 udpv6_sendmsg+0x2769/0x3380 net/ipv6/udp.c:1340 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:633 [inline] sock_sendmsg+0xca/0x110 net/socket.c:643 SYSC_sendto+0x358/0x5a0 net/socket.c:1750 SyS_sendto+0x40/0x50 net/socket.c:1718 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x452719 RSP: 002b:00007fe483fb9be8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452719 RDX: 0000000000000001 RSI: 0000000020e17000 RDI: 0000000000000015 RBP: 00000000000004ed R08: 0000000020e0afe4 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f56d8 R13: 00000000ffffffff R14: 00007fe483fba6d4 R15: 0000000000000000 Code: e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ea 0f 00 00 48 8d 79 04 48 b8 00 00 00 00 00 fc ff df 45 8b 74 24 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RIP: ip6_setup_cork+0x274/0x15c0 net/ipv6/ip6_output.c:1168 RSP: ffff8801d00af550 ---[ end trace 7d7c25394af4d194 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..