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fix(dracut-install): release memory allocated for regular expressions #2573

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fix(dracut-install): release memory allocated for regular expressions #2573

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Commits on Nov 28, 2023

  1. fix(dracut-install): release memory allocated for regular expressions 

    Use `regfree` to free memory allocated by `regcomp`. Quoting [1]:

"If the preg argument to regexec() or regfree() is not a compiled regular
expression returned by regcomp(), the result is undefined."

Therefore, `regfree` must only be called if `regcomp` succeeded.

[1] https://pubs.opengroup.org/onlinepubs/9699919799/functions/regcomp.html
    @aafeijoo-suse
    aafeijoo-suse committed Nov 28, 2023
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