From 5e5e1e6d50484d6d29f18e08eaf629fbc10a29ec Mon Sep 17 00:00:00 2001
From: aliaspider <aliaspider@gmail.com>
Date: Sat, 4 Jun 2016 04:41:38 +0100
Subject: [PATCH] (ffmpeg_core.c) passing a format string without the arguments
 to log_cb can result in a crash.

---
 cores/libretro-ffmpeg/ffmpeg_core.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cores/libretro-ffmpeg/ffmpeg_core.c b/cores/libretro-ffmpeg/ffmpeg_core.c
index 9e56232ae9..0499e3c047 100644
--- a/cores/libretro-ffmpeg/ffmpeg_core.c
+++ b/cores/libretro-ffmpeg/ffmpeg_core.c
@@ -181,9 +181,14 @@ static struct
 #ifdef HAVE_SSA
 static void ass_msg_cb(int level, const char *fmt, va_list args, void *data)
 {
+   char buffer[4096];
    (void)data;
+
    if (level < 6)
-      log_cb(RETRO_LOG_INFO, fmt);
+   {
+      vsnprintf(buffer, sizeof(buffer), fmt, args);
+      log_cb(RETRO_LOG_INFO, "%s\n", buffer);
+   }
 }
 #endif