From 846ecb9b44995c99b80f762d579d65f738fca291 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Tue, 24 Jan 2012 11:40:45 +0100
Subject: [PATCH] More robust error check for vasprintf

* strace.c (verror_msg): More robust error check for vasprintf.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
 strace.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/strace.c b/strace.c
index 745294dd..c5961f5e 100644
--- a/strace.c
+++ b/strace.c
@@ -232,8 +232,7 @@ static void verror_msg(int err_no, const char *fmt, va_list p)
 	 * Thus we use vasprintf + single fprintf.
 	 */
 	msg = NULL;
-	vasprintf(&msg, fmt, p);
-	if (msg) {
+	if (vasprintf(&msg, fmt, p) >= 0 && msg) {
 		if (err_no)
 			fprintf(stderr, "%s: %s: %s\n", progname, msg, strerror(err_no));
 		else