netlink: 48 bytes leftover after parsing attributes in process `syz.1.3369'.
netlink: 12 bytes leftover after parsing attributes in process `syz.1.3369'.
Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]
CPU: 1 UID: 0 PID: 17063 Comm: syz.1.3369 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:rt6_find_cached_rt+0xb9/0x270
Code: 48 c1 e8 03 48 89 44 24 08 48 8b 44 24 08 80 3c 18 00 74 08 4c 89 f7 e8 25 0a eb f7 49 8b 2e 48 83 c5 60 48 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 48 89 ef e8 09 0a eb f7 4c 8b 6d 00 e8 70 ba 4a
RSP: 0018:ffffc90002ae6a40 EFLAGS: 00010206
RAX: 000000000000000c RBX: dffffc0000000000 RCX: 0000000000000002
RDX: ffff888111d88000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000060 R08: ffff88802857d533 R09: 1ffff110050afaa6
R10: dffffc0000000000 R11: ffffed10050afaa7 R12: ffffc90002ae6b18
R13: 0000000000000000 R14: ffffc90002ae6b10 R15: 0000000000000000
FS:  00007fd240e886c0(0000) GS:ffff8881a39dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000010c0 CR3: 00000000271c6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 ip6_pol_route+0x28d/0x1180
 fib6_rule_lookup+0x348/0x6f0
 ip6_route_output_flags+0x364/0x5d0
 ip6_dst_lookup_tail+0x299/0x1510
 ip6_dst_lookup_flow+0x47/0xe0
 tipc_udp_xmit+0x315/0xb60
 tipc_bearer_xmit_skb+0x2b3/0x400
 __tipc_nl_bearer_enable+0x1044/0x13f0
 tipc_nl_bearer_enable+0x22/0x40
 genl_family_rcv_msg_doit+0x215/0x300
 genl_rcv_msg+0x60e/0x790
 netlink_rcv_skb+0x208/0x470
 genl_rcv+0x28/0x40
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd23ff8ec29
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:00007fd240e88038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd2401d5fa0 RCX: 00007fd23ff8ec29
RDX: 0000000000000000 RSI: 00002000000010c0 RDI: 0000000000000007
RBP: 00007fd240011e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd2401d6038 R14: 00007fd2401d5fa0 R15: 00007ffc81af9e38
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rt6_find_cached_rt+0xb9/0x270
Code: 48 c1 e8 03 48 89 44 24 08 48 8b 44 24 08 80 3c 18 00 74 08 4c 89 f7 e8 25 0a eb f7 49 8b 2e 48 83 c5 60 48 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 48 89 ef e8 09 0a eb f7 4c 8b 6d 00 e8 70 ba 4a
RSP: 0018:ffffc90002ae6a40 EFLAGS: 00010206
RAX: 000000000000000c RBX: dffffc0000000000 RCX: 0000000000000002
RDX: ffff888111d88000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000060 R08: ffff88802857d533 R09: 1ffff110050afaa6
R10: dffffc0000000000 R11: ffffed10050afaa7 R12: ffffc90002ae6b18
R13: 0000000000000000 R14: ffffc90002ae6b10 R15: 0000000000000000
FS:  00007fd240e886c0(0000) GS:ffff8881a39dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000010c0 CR3: 00000000271c6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
