[PATCH] regex: fix buffer read overrun in search [BZ#28470]

[Andreas Schwab]

On Nov 24 2021, Paul Eggert wrote:

> On 11/24/21 14:45, Andreas Schwab wrote:
>> Is it?  Why?
>
> Partly because it refuses to read past the bounds of an array, where the
> old code would.

That's just papering over a bug, not fixing it.

> And partly because it's been run through several tests - not just
> glibc tests, but also grep and coreutils and probably some others by
> now.

How much coverage do they provide?

Also, you failed to add a test.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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