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Fix memory leak for some invalid regular expressions.

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This commit is contained in:
Ulrich Drepper 2010-10-11 11:46:22 -04:00
parent b76b818e6f
commit a129c80d54
3 changed files with 15 additions and 2 deletions
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5
ChangeLog
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@ -1,5 +1,10 @@
2010-10-11 Ulrich Drepper <drepper@gmail.com>
* posix/regcomp.c (parse_bracket_exp): Add missing re_free calls.
[BZ #12078]
* posix/regcomp.c (parse_sub_exp): Free tree data when it is not used.
[BZ #12108]
* stdio-common/psiginfo.c (psiginfo): Don't expext SIGRTMIN..SIGRTMAX
to have entries in sys_siglist.

2
NEWS
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@ -10,7 +10,7 @@ Version 2.13
* The following bugs are resolved with this release:
3268, 7066, 10851, 11611, 11640, 11701, 11840, 11856, 11883, 11903, 11904,
11968, 11979, 12005, 12037, 12067, 12077, 12092, 12093, 12107, 12108
11968, 11979, 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108
* New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark

10
posix/regcomp.c
View File

@ -2418,7 +2418,11 @@ parse_sub_exp (re_string_t *regexp, regex_t *preg, re_token_t *token,
{
tree = parse_reg_exp (regexp, preg, token, syntax, nest, err);
if (BE (*err == REG_NOERROR && token->type != OP_CLOSE_SUBEXP, 0))
*err = REG_EPAREN;
{
if (tree != NULL)
free_tree (NULL, tree);
*err = REG_EPAREN;
}
if (BE (*err != REG_NOERROR, 0))
return NULL;
}
@ -3028,6 +3032,10 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token,
if (BE (sbcset == NULL, 0))
#endif /* RE_ENABLE_I18N */
{
re_free (sbcset);
#ifdef RE_ENABLE_I18N
re_free (mbcset);
#endif
*err = REG_ESPACE;
return NULL;
}