linux-kernel - Re: [PATCH] kasan, fortify: properly rename memintrinsics

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Date: Sat, 18 May 2024 00:53:55 +0200
From: Andrey Konovalov <andreyknvl@...il.com>
To: Nico Pache <npache@...hat.com>
Cc: andrey.konovalov@...ux.dev, Marco Elver <elver@...gle.com>, 
	Alexander Potapenko <glider@...gle.com>, Dmitry Vyukov <dvyukov@...gle.com>, 
	Andrey Ryabinin <ryabinin.a.a@...il.com>, kasan-dev@...glegroups.com, 
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org, 
	Erhard Furtner <erhard_f@...lbox.org>, Daniel Axtens <dja@...ens.net>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kasan, fortify: properly rename memintrinsics

On Fri, May 17, 2024 at 9:50 PM Nico Pache <npache@...hat.com> wrote:
>
> Thank you for fixing this !! The test no longer panics :)

Awesome, thank you for testing!

> Now that the test progresses I also see rcu_uaf failing.
>     # rcu_uaf: EXPECTATION FAILED at mm/kasan/kasan_test.c:870
>     KASAN failure expected in "call_rcu(&global_rcu_ptr->rcu,
> rcu_uaf_reclaim); rcu_barrier()", but none occurred
>     not ok 31 rcu_uaf
>  I can open a new thread for that if you'd like.

Looks like something else is broken :(

Unfortunately, I failed to boot a kernel built with the config that
you provided in QEMU.

If you can provide a config that boots in QEMU or instructions on how
to reproduce the issue, I can take a look.

Thanks!