Re: BUG: WARNING in kvfree_rcu_bulk

Uladzislau Rezki
2024-09-16T13:54:54Z

> After several tests, I found that the same PoC can cause multiple
> different crashes for some unknown reason. Thus, I suspect that the
> bug is capable of performing unintended memory writing without being
> caught by KASAN.
> I tested the PoC on the latest kernel, Linux 6.11 rc7 and it can still
> cause crashes.
> For reproducibility, I've created a GitHub repo at
> https://github.com/TomAPU/Linux611BugReport, which contains the
> software versions we used, the QEMU arguments we used to boot up the
> kernel, the kernel config we used, the pre-compiled kernel image,
> Dockerfile that can be used to compile the kernel.
> I hope this repo will be helpful for analyzing the bug.
>
Could you please help to bisect this bug then?

Thanks!

--
Uladzislau Rezki