general protection fault, probably for non-canonical address 0xdffffc000000005e: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000002f0-0x00000000000002f7]
CPU: 1 PID: 22153 Comm: syz.8.9249 Tainted: G        W         5.15.178-syzkaller-00034-g5e1b899f19c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__in6_dev_get include/net/addrconf.h:341 [inline]
RIP: 0010:ip6_ignore_linkdown include/net/addrconf.h:432 [inline]
RIP: 0010:find_match+0xb9/0xe50 net/ipv6/route.c:741
Code: 74 08 48 89 df e8 47 2a 58 fd 4c 89 65 b0 48 89 d8 bb f0 02 00 00 48 03 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 19 2a 58 fd 4c 8b 23 4d 85 e4 0f 84
RSP: 0018:ffffc900024a6fb0 EFLAGS: 00010202
RAX: 000000000000005e RBX: 00000000000002f0 RCX: dffffc0000000000
RDX: ffff88813572cf00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900024a7058 R08: ffffffff845aad52 R09: ffffc900024a73b0
R10: ffffc900024a73a0 R11: dffffc0000000001 R12: ffffc900024a73a0
R13: 0000000000000003 R14: 1ffff11028ec11c4 R15: 0000000000000000
FS:  00007fb9053546c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb905353f98 CR3: 000000012680e000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rt6_nh_find_match+0xdd/0x140 net/ipv6/route.c:781
 nexthop_for_each_fib6_nh+0x113/0x210 net/ipv4/nexthop.c:1242
 __find_rr_leaf+0x658/0xb70 net/ipv6/route.c:822
 find_rr_leaf net/ipv6/route.c:850 [inline]
 rt6_select net/ipv6/route.c:894 [inline]
 fib6_table_lookup+0x338/0xaf0 net/ipv6/route.c:2189
 ip6_pol_route+0x151/0x14b0 net/ipv6/route.c:2225
 ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2601
 pol_lookup_func include/net/ip6_fib.h:592 [inline]
 fib6_rule_lookup+0x371/0x620 net/ipv6/fib6_rules.c:120
 ip6_route_output_flags_noref+0x289/0x350 net/ipv6/route.c:2633
 ip6_route_output_flags+0x3f/0x220 net/ipv6/route.c:2646
 ip6_route_output include/net/ip6_route.h:98 [inline]
 ip6_dst_lookup_tail+0x12c/0x12f0 net/ipv6/ip6_output.c:1102
 ip6_dst_lookup_flow+0xb5/0x170 net/ipv6/ip6_output.c:1232
 tcp_v6_connect+0xcc9/0x1d40 net/ipv6/tcp_ipv6.c:284
 __inet_stream_connect+0x254/0xe10 net/ipv4/af_inet.c:669
 inet_stream_connect+0x63/0xa0 net/ipv4/af_inet.c:733
 __sys_connect_file net/socket.c:1923 [inline]
 __sys_connect+0x38b/0x410 net/socket.c:1940
 __do_sys_connect net/socket.c:1950 [inline]
 __se_sys_connect net/socket.c:1947 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:1947
 x64_sys_call+0x14e/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:43
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb906cea169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb905354038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007fb906f02fa0 RCX: 00007fb906cea169
RDX: 000000000000001c RSI: 0000200000000080 RDI: 0000000000000006
RBP: 00007fb906d6b2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb906f02fa0 R15: 00007fff90b998e8
 </TASK>
Modules linked in:
----------------
Code disassembly (best guess):
   0:	74 08                	je     0xa
   2:	48 89 df             	mov    %rbx,%rdi
   5:	e8 47 2a 58 fd       	call   0xfd582a51
   a:	4c 89 65 b0          	mov    %r12,-0x50(%rbp)
   e:	48 89 d8             	mov    %rbx,%rax
  11:	bb f0 02 00 00       	mov    $0x2f0,%ebx
  16:	48 03 18             	add    (%rax),%rbx
  19:	48 89 d8             	mov    %rbx,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	48 89 df             	mov    %rbx,%rdi
  33:	e8 19 2a 58 fd       	call   0xfd582a51
  38:	4c 8b 23             	mov    (%rbx),%r12
  3b:	4d 85 e4             	test   %r12,%r12
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84