Merge remote-tracking branch 'qatar/master'

* qatar/master:
  mp3dec: perform I/S and M/S only when frame mode is joint stereo.
  id3v2: add another mimetype for JPEG image
  lzw: prevent buffer overreads.
  WMAL: Remove inaccurate and unnecessary doxy
  h264: fix cabac-on-stack after safe cabac reader.
  truemotion2: convert packet header reading to bytestream2.

Conflicts:
	libavcodec/lzw.c
	libavcodec/truemotion2.c
	libavformat/id3v2.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 8 insertions, 3 deletions

diff --git a/libavcodec/lzw.c b/libavcodec/lzw.c
index 2db0d67e7f..aed1a43fac 100644
--- a/libavcodec/lzw.c
+++ b/libavcodec/lzw.c
@@ -101,9 +101,14 @@ void ff_lzw_decode_tail(LZWState *p)
     struct LZWState *s = (struct LZWState *)p;
 
     if(s->mode == FF_LZW_GIF) {
-        while(s->pbuf + s->bs < s->ebuf && s->bs>0){
-            s->pbuf += s->bs;
-            s->bs = *s->pbuf++;
+        while (s->bs > 0) {
+            if (s->pbuf + s->bs >= s->ebuf) {
+                s->pbuf = s->ebuf;
+                break;
+            } else {
+                s->pbuf += s->bs;
+                s->bs = *s->pbuf++;
+            }
         }
     }else
         s->pbuf= s->ebuf;