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Fix possible segmentation fault in Perl 5.38.2.

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When calling POSIX::setlocale() with unknown locale category, Perl
could crash due to NULL dereference.

found by sthen@ in smokeping build; OK afresh1@
This commit is contained in:
bluhm 2024-05-17 18:11:58 +00:00
parent 68e76eaff5
commit d635388b71
1 changed files with 1 additions and 1 deletions
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2
gnu/usr.bin/perl/locale.c
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@ -2858,7 +2858,7 @@ Perl_setlocale(const int category, const char * locale)
/* If the new locale is the same as the current one, nothing is actually
* being changed, so do nothing. */
if ( strEQ(retval, locale)
if ( retval != NULL && strEQ(retval, locale)
&& ( ! affects_LC_NUMERIC(category)
# ifdef USE_LOCALE_NUMERIC