Package: ldns / 1.7.0-4

0003-bugfix-1257-Free-after-reallocing-to-0-size.patch Patch series | download
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From: Willem Toorop <willem@nlnetlabs.nl>
Date: Thu, 27 Apr 2017 00:25:20 +0200
Subject: bugfix #1257: Free after reallocing to 0 size

Thanks Stephan Zeisberg
---
 str2host.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/str2host.c b/str2host.c
index c396f54..c3afba1 100644
--- a/str2host.c
+++ b/str2host.c
@@ -1496,8 +1496,10 @@ ldns_str2rdf_long_str(ldns_rdf **rd, const char *str)
 	if (! str) {
 		return LDNS_STATUS_SYNTAX_BAD_ESCAPE;
 	}
-	length = (size_t)(dp - data);
-
+	if (!(length = (size_t)(dp - data))) {
+		LDNS_FREE(data);
+		return LDNS_STATUS_SYNTAX_EMPTY;
+	}
 	/* Lose the overmeasure */
 	data = LDNS_XREALLOC(dp = data, uint8_t, length);
 	if (! data) {