general protection fault, probably for non-canonical address 0xdffffc0000000047: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000238-0x000000000000023f]
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.6.0-rc1-syzkaller #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+0x12f/0xc90 net/ipv6/route.c:749
Code: 0f b6 75 b0 40 84 f6 0f 84 b4 01 00 00 e8 a9 2b 92 fa 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 d5
RSP: 0018:ffffc90000d7f2a0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffffff86e3644f
RDX: 0000000000000047 RSI: ffffffff86e36267 RDI: 000000000000023c
RBP: ffffc90000d7f310 R08: ffff8880a9a46440 R09: ffffed1015d2707c
R10: ffffed1015d2707b R11: ffff8880ae9383db R12: ffff8880a852e8af
R13: 0000000000000001 R14: ffff8880a852e8a0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffff471e010 CR3: 000000004dfec000 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:837
 find_rr_leaf net/ipv6/route.c:858 [inline]
 rt6_select net/ipv6/route.c:902 [inline]
 fib6_table_lookup+0x697/0xdb0 net/ipv6/route.c:2170
 ip6_pol_route+0x1f6/0xa70 net/ipv6/route.c:2206
 ip6_pol_route_input+0x65/0x80 net/ipv6/route.c:2264
 fib6_rule_lookup+0x133/0x7d0 net/ipv6/fib6_rules.c:114
 ip6_route_input_lookup+0xb7/0xd0 net/ipv6/route.c:2276
 ip6_route_input+0x5f0/0xa40 net/ipv6/route.c:2445
 ip6_rcv_finish_core.isra.0+0x174/0x590 net/ipv6/ip6_input.c:63
 ip6_rcv_finish+0x17a/0x310 net/ipv6/ip6_input.c:74
 NF_HOOK include/linux/netfilter.h:307 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:306
 __netif_receive_skb_one_core+0x113/0x1a0 net/core/dev.c:5198
 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5312
 process_backlog+0x226/0x780 net/core/dev.c:6144
 napi_poll net/core/dev.c:6582 [inline]
 net_rx_action+0x508/0x1120 net/core/dev.c:6650
 __do_softirq+0x262/0x98c kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:603 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:595
 smpboot_thread_fn+0x6a3/0xa40 kernel/smpboot.c:165
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace dd0632aa5ba0a7f1 ]---
RIP: 0010:ip6_ignore_linkdown include/net/addrconf.h:402 [inline]
RIP: 0010:find_match+0x12f/0xc90 net/ipv6/route.c:749
Code: 0f b6 75 b0 40 84 f6 0f 84 b4 01 00 00 e8 a9 2b 92 fa 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 d5
RSP: 0018:ffffc90000d7f2a0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffffff86e3644f
RDX: 0000000000000047 RSI: ffffffff86e36267 RDI: 000000000000023c
RBP: ffffc90000d7f310 R08: ffff8880a9a46440 R09: ffffed1015d2707c
R10: ffffed1015d2707b R11: ffff8880ae9383db R12: ffff8880a852e8af