From: banjiuqingshan <63209634+banjiuqingshan@users.noreply.github.com>
Date: Fri, 18 Nov 2022 01:37:00 +0000 (+0800)
Subject: use regfree to release the memory
X-Git-Tag: v3.6.2~21^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F1805%2Fhead;p=thirdparty%2Flibarchive.git

use regfree to release the memory

use regfree() to release the memory requested by the regular expression.#1804
---

diff --git a/tar/subst.c b/tar/subst.c
index 39c54acfd..55ad63dce 100644
--- a/tar/subst.c
+++ b/tar/subst.c
@@ -320,6 +320,7 @@ cleanup_substitution(struct bsdtar *bsdtar)
 	while ((rule = subst->first_rule) != NULL) {
 		subst->first_rule = rule->next;
 		free(rule->result);
+		regfree(&rule->re);
 		free(rule);
 	}
 	free(subst);