linux-kernel - Re: [PATCH] kunit/overflow: Fix UB in overflow_allocation

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Message-ID: <393fbdf0-7e56-486b-b932-3c7561e83740@gmail.com>
Date: Fri, 16 Aug 2024 02:27:58 +0100
From: Ivan Orlov <ivan.orlov0322@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: kees@...nel.org, davidgow@...gle.com, kunit-dev@...glegroups.com,
 linux-kernel@...r.kernel.org, erhard_f@...lbox.org
Subject: Re: [PATCH] kunit/overflow: Fix UB in overflow_allocation_test

On 8/16/24 00:04, Andrew Morton wrote:
> On Thu, 15 Aug 2024 01:04:31 +0100 Ivan Orlov <ivan.orlov0322@...il.com> wrote:
> 
>> Subject: [PATCH] kunit/overflow: Fix UB in overflow_allocation_test
> 
> What's "UB", btw?

UB in the patch title stands for "undefined behavior", since passing a 
pointer with such a short lifetime to kunit_device_register causes one.

I was not sure about how to call this type of issues (misallocation, 
probably?), so I decided to give it a generic name :)

-- 
Kind regards,
Ivan Orlov