[FFmpeg-cvslog] avcodec/targa_y216dec: Fix width type

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun May  7 03:49:06 2017 +0200| [3e56db892600c2fbe34782c6140f1ee832a2c344] | committer: Michael Niedermayer

avcodec/targa_y216dec: Fix width type

Fixes out of array access
Fixes: 1376/clusterfuzz-testcase-minimized-6361794975105024

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3e56db892600c2fbe34782c6140f1ee832a2c344
---

 libavcodec/targa_y216dec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/targa_y216dec.c b/libavcodec/targa_y216dec.c
index 21b3d35d67..443d48a92f 100644
--- a/libavcodec/targa_y216dec.c
+++ b/libavcodec/targa_y216dec.c
@@ -35,7 +35,8 @@ static int y216_decode_frame(AVCodecContext *avctx, void *data,
 {
     AVFrame *pic = data;
     const uint16_t *src = (uint16_t *)avpkt->data;
-    uint16_t *y, *u, *v, aligned_width = FFALIGN(avctx->width, 4);
+    uint16_t *y, *u, *v;
+    int aligned_width = FFALIGN(avctx->width, 4);
     int i, j, ret;
 
     if (avpkt->size < 4 * avctx->height * aligned_width) {