Re: general protection fault in __fib6_drop_pcpu_from [CVE-2024-40905 Incomplete fix]

[Alexander Potapenko]

On Tue, Feb 4, 2025 at 5:27 AM YAN KANG <kangyan91@xxxxxxxxxxx> wrote:
>
> Dear developers and maintainers,
>
> I found a new kernel UAF  bug titiled "general protection fault in __fib6_drop_pcpu_from" while using modified syzkaller fuzzing tool. I Itested it on the latest Linux upstream version (6.13.0-rc1), and it was able to be triggered many times .
>
I was running an unmodified syzkaller build today for a different
reason, and came across this bug within 40 minutes of fuzzing.
Just giving you a heads-up for the case you will be evaluating the
fuzzer modifications.