avcodec/cdxl: Fix signed integer overflow: 14243456 * 164 cannot be represented in...
authorMichael Niedermayer <michael@niedermayer.cc>
Fri, 5 May 2017 17:26:02 +0000 (19:26 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Fri, 5 May 2017 17:26:36 +0000 (19:26 +0200)
Fixes: 1341/clusterfuzz-testcase-minimized-5441502618583040

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

index c8d66b5..7a9b419 100644 (file)
@@ -275,7 +275,7 @@ static int cdxl_decode_frame(AVCodecContext *avctx, void *data,
     else
         aligned_width = FFALIGN(c->avctx->width, 16);
     c->padded_bits  = aligned_width - c->avctx->width;
-    if (c->video_size < aligned_width * avctx->height * c->bpp / 8)
+    if (c->video_size < aligned_width * avctx->height * (int64_t)c->bpp / 8)
         return AVERROR_INVALIDDATA;
     if (!encoding && c->palette_size && c->bpp <= 8) {
         avctx->pix_fmt = AV_PIX_FMT_PAL8;