[MPlayer-dev-eng] [PATCH] Fix uninitialized memory read in vd_ffmpeg.c

[Tobias Diedrich]

Fix uninitialized memory read.

The debug message shouldn't show uninitialized bogus data if len is <= 16.

Index: mplayer-patchset1/libmpcodecs/vd_ffmpeg.c
===================================================================
--- mplayer-patchset1.orig/libmpcodecs/vd_ffmpeg.c	2011-02-18 20:08:07.965376000 +0100
+++ mplayer-patchset1/libmpcodecs/vd_ffmpeg.c	2011-02-18 20:09:34.748589000 +0100
@@ -828,8 +828,12 @@
 
     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 
-    mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
-           ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
+    if (len >= 16) {
+        mp_msg(MSGT_DECVIDEO, MSGL_DBG2,
+               "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
+               ((int *)data)[0], ((int *)data)[1],
+               ((int *)data)[2], ((int *)data)[3]);
+    }
     av_init_packet(&pkt);
     pkt.data = data;
     pkt.size = len;