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: 0 PID: 9228 Comm: syz-executor586 Not tainted 5.4.0-rc3+ #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 06 f0 25 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 15
RSP: 0018:ffff8880a8636d98 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888091c09ca0 RCX: ffffffff864d26eb
RDX: 0000000000000047 RSI: ffffffff864d250a RDI: 000000000000023c
RBP: ffff8880a8636df8 R08: ffff8880a04e2100 R09: ffffed1015d06b75
R10: ffffed1015d06b74 R11: ffff8880ae835ba3 R12: 0000000000000003
R13: ffff8880a8636ff8 R14: ffff888091c09caf R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000f7fb8b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7f97db0 CR3: 00000000a4764000 CR4: 00000000001406f0
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+0x1f6/0xaf0 net/ipv6/route.c:2200
 ip6_pol_route_output+0x54/0x70 net/ipv6/route.c:2452
 fib6_rule_lookup+0x133/0x7d0 net/ipv6/fib6_rules.c:113
 ip6_route_output_flags_noref+0x2d6/0x360 net/ipv6/route.c:2484
 ip6_route_output_flags+0x106/0x4d0 net/ipv6/route.c:2497
 ip6_dst_lookup_tail+0x571/0x1ef0 net/ipv6/ip6_output.c:1049
 ip6_dst_lookup_flow+0xa8/0x220 net/ipv6/ip6_output.c:1150
 ip6_sk_dst_lookup_flow net/ipv6/ip6_output.c:1188 [inline]
 ip6_sk_dst_lookup_flow+0x62a/0xb90 net/ipv6/ip6_output.c:1178
 udpv6_sendmsg+0x17b4/0x2990 net/ipv6/udp.c:1446
 inet6_sendmsg+0x9e/0xe0 net/ipv6/af_inet6.c:576
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2311
 __sys_sendmmsg+0x2db/0x4d0 net/socket.c:2406
 __compat_sys_sendmmsg net/compat.c:656 [inline]
 __do_compat_sys_sendmmsg net/compat.c:663 [inline]
 __se_compat_sys_sendmmsg net/compat.c:660 [inline]
 __ia32_compat_sys_sendmmsg+0x9f/0x100 net/compat.c:660
 do_syscall_32_irqs_on arch/x86/entry/common.c:333 [inline]
 do_fast_syscall_32+0x27b/0xdb3 arch/x86/entry/common.c:404
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7fbca29
Code: b8 80 96 98 00 eb cc 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f7fb81dc EFLAGS: 00000296 ORIG_RAX: 0000000000000159
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020006d00
RDX: 00000000000000c6 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00000000200000c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 52052302f245c114 ]---
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 06 f0 25 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 15
RSP: 0018:ffff8880a8636d98 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888091c09ca0 RCX: ffffffff864d26eb
RDX: 0000000000000047 RSI: ffffffff864d250a RDI: 000000000000023c
RBP: ffff8880a8636df8 R08: ffff8880a04e2100 R09: ffffed1015d06b75
R10: ffffed1015d06b74 R11: ffff8880ae835ba3 R12: 0000000000000003
R13: ffff8880a8636ff8 R14: ffff888091c09caf R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000f7fb8b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7f97db0 CR3: 00000000a4764000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400