[PATCH] posix: Fix double-free after allocation failure in regcomp (bug 33185)

[Andreas Schwab]

On Jul 21 2025, Florian Weimer wrote:

> * Andreas K. Huettel:
>
>> Dumb question, what ensures code outside this file calls the wrappers here?
>> I'm probably just missing a level of indirection.
>
> The link editor automatically creates exported symbols from the main
> program, to support symbol interposition.

Only because libc explicitly allows malloc interposition.

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Andreas Schwab, schwab@linux-m68k.org
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