kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9283 Comm: syz-executor.3 Not tainted 5.4.0-rc6-next-20191108 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ip6_ignore_linkdown include/net/addrconf.h:402 [inline]
RIP: 0010:find_match+0x132/0xd70 net/ipv6/route.c:743
Code: 0f b6 75 b0 40 84 f6 0f 84 ad 01 00 00 e8 36 f7 1d fb 49 8d bf 3c 02 00 00 48 b8 00 00 00 00 00 fc ff df 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 10
RSP: 0018:ffff888094e96da8 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888099ca38a0 RCX: ffffffff865578ab
RDX: 0000000000000047 RSI: ffffffff865576ca RDI: 000000000000023c
RBP: ffff888094e96e08 R08: ffff88809954c340 R09: ffffed1015d26b7d
R10: ffffed1015d26b7c R11: ffff8880ae935be3 R12: 0000000000000003
R13: ffff888094e97008 R14: ffff888099ca38af R15: 0000000000000000
FS:  00007fe022fbc700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000075c000 CR3: 000000009f0e0000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __find_rr_leaf+0x14e/0x750 net/ipv6/route.c:831
 find_rr_leaf net/ipv6/route.c:852 [inline]
 rt6_select net/ipv6/route.c:896 [inline]
 fib6_table_lookup+0x697/0xdb0 net/ipv6/route.c:2164
 ip6_pol_route+0x1f6/0xab0 net/ipv6/route.c:2200
 ip6_pol_route_output+0x54/0x70 net/ipv6/route.c:2449
 fib6_rule_lookup+0x133/0x7d0 net/ipv6/fib6_rules.c:114
 ip6_route_output_flags_noref+0x2d6/0x360 net/ipv6/route.c:2481
 ip6_route_output_flags+0x106/0x4d0 net/ipv6/route.c:2494
 ip6_dst_lookup_tail+0x56c/0x1ee0 net/ipv6/ip6_output.c:1052
 ip6_dst_lookup_flow+0xa8/0x220 net/ipv6/ip6_output.c:1153
 ip6_sk_dst_lookup_flow net/ipv6/ip6_output.c:1191 [inline]
 ip6_sk_dst_lookup_flow+0x62a/0xb90 net/ipv6/ip6_output.c:1181
 udpv6_sendmsg+0x17af/0x2990 net/ipv6/udp.c:1446
 inet6_sendmsg+0x9e/0xe0 net/ipv6/af_inet6.c:576
 sock_sendmsg_nosec net/socket.c:638 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:658
 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2329
 __sys_sendmmsg+0x1bf/0x4d0 net/socket.c:2431
 __do_sys_sendmmsg net/socket.c:2460 [inline]
 __se_sys_sendmmsg net/socket.c:2457 [inline]
 __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2457
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a219
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe022fbbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a219
RDX: 00000000000000c6 RSI: 0000000020006d00 RDI: 0000000000000004
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe022fbc6d4
R13: 00000000004c7f9d R14: 00000000004de3c8 R15: 00000000ffffffff
Modules linked in:
---[ end trace 21881a39f9f7cd1c ]---
RIP: 0010:ip6_ignore_linkdown include/net/addrconf.h:402 [inline]
RIP: 0010:find_match+0x132/0xd70 net/ipv6/route.c:743
Code: 0f b6 75 b0 40 84 f6 0f 84 ad 01 00 00 e8 36 f7 1d fb 49 8d bf 3c 02 00 00 48 b8 00 00 00 00 00 fc ff df 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 10
RSP: 0018:ffff888094e96da8 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888099ca38a0 RCX: ffffffff865578ab
RDX: 0000000000000047 RSI: ffffffff865576ca RDI: 000000000000023c
RBP: ffff888094e96e08 R08: ffff88809954c340 R09: ffffed1015d26b7d
R10: ffffed1015d26b7c R11: ffff8880ae935be3 R12: 0000000000000003
R13: ffff888094e97008 R14: ffff888099ca38af R15: 0000000000000000
FS:  00007fe022fbc700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f774fede000 CR3: 000000009f0e0000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400