From: Joerg Sonnenberger <joerg@bec.de>
Date: Sat, 19 Oct 2019 15:15:05 +0000 (+0200)
Subject: When the initial archive open for write fails, explicitly free filters.
X-Git-Tag: v3.4.1~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18fc5023c4bd66c2623f363b5f4c859406b7df15;p=thirdparty%2Flibarchive.git

When the initial archive open for write fails, explicitly free filters.

This provides a defense-in-depth against programming errors due to the
partial state. Based on a report from Airbus Security - Vulnerability
Management.
---

diff --git a/libarchive/archive_write.c b/libarchive/archive_write.c
index 9fa46bf5e..1c40e9769 100644
--- a/libarchive/archive_write.c
+++ b/libarchive/archive_write.c
@@ -486,6 +486,7 @@ archive_write_open(struct archive *_a, void *client_data,
 	ret = __archive_write_open_filter(a->filter_first);
 	if (ret < ARCHIVE_WARN) {
 		r1 = __archive_write_close_filter(a);
+		__archive_write_filters_free(_a);
 		return (r1 < ret ? r1 : ret);
 	}