1. ffmpeg
  2. Commit 66894351909ffca0bd55b4e349362741f25a0f08
Browse code

avcodec/scpr: Fix use of uninitialized variable

Fixes: Undefined shift
Fixes: 12911/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-5677102915911680

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 53248acfb3b23007c89ae822d7bcae451272d5a7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Michael Niedermayer authored on 2019/02/28 08:12:14
Showing 1 changed files
libavcodec/scpr.c
History View file @ 6689435
... ... 
@@ -504,7 +504,7 @@ static int decompress_p(AVCodecContext *avctx,
504 504 
 {
505 505 
     SCPRContext *s = avctx->priv_data;
506 506 
     GetByteContext *gb = &s->gb;
507 
-    int ret, temp, min, max, x, y, cx = 0, cx1 = 0;
507 
+    int ret, temp = 0, min, max, x, y, cx = 0, cx1 = 0;
508 508 
     int backstep = linesize - avctx->width;
509 509 
     const int cxshift = s->cxshift;
510 510