From: Milan Broz <gmazyland@gmail.com>
Date: Mon, 18 Jun 2012 13:03:47 +0000 (+0200)
Subject: Fix malloc of 0 size.
X-Git-Tag: upstream/1.6~239
X-Git-Url: http://review.tizen.org/git/?p=platform%2Fupstream%2Fcryptsetup.git;a=commitdiff_plain;h=e37016bf649adb19e649da494e5ebea9183f33b9

Fix malloc of 0 size.
---

diff --git a/src/cryptsetup_reencrypt.c b/src/cryptsetup_reencrypt.c
index f5f33da..fa6ce13 100644
--- a/src/cryptsetup_reencrypt.c
+++ b/src/cryptsetup_reencrypt.c
@@ -317,7 +317,7 @@ static int create_empty_header(const char *new_file, const char *old_file,
 
 	log_dbg("Creating empty file %s of size %lu.", new_file, (unsigned long)size);
 
-	if (!(buf = malloc(size)))
+	if (!size || !(buf = malloc(size)))
 		return -ENOMEM;
 	memset(buf, 0, size);