Re: [syzbot] [net?] general protection fault in modify_prefix_route

[syzbot]

syzbot has bisected this issue to:

commit 5eb902b8e7193cdcb33242af0a56502e6b5206e9
Author: Kui-Feng Lee <thinker.li@xxxxxxxxx>
Date:   Thu Feb 8 22:06:51 2024 +0000

    net/ipv6: Remove expired routes with a separated list of routes.

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17a90dc0580000
start commit:   7eef7e306d3c Merge tag 'for-6.13/dm-changes' of git://git...
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=14690dc0580000
console output: https://syzkaller.appspot.com/x/log.txt?x=10690dc0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=3c44a32edb32752c
dashboard link: https://syzkaller.appspot.com/bug?extid=1de74b0794c40c8eb300
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=142375c0580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=146f1530580000

Reported-by: syzbot+1de74b0794c40c8eb300@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 5eb902b8e719 ("net/ipv6: Remove expired routes with a separated list of routes.")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection