diff options
| -rw-r--r-- | libavcodec/fic.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/libavcodec/fic.c b/libavcodec/fic.c index 90fda91f4c..9453941b76 100644 --- a/libavcodec/fic.c +++ b/libavcodec/fic.c @@ -263,8 +263,8 @@ static int fic_decode_frame(AVCodecContext *avctx, void *data, } for (slice = 0; slice < nslices; slice++) { - int slice_off = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4); - int slice_size; + unsigned slice_off = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4); + unsigned slice_size; int y_off = ctx->slice_h * slice; int slice_h = ctx->slice_h; @@ -279,11 +279,11 @@ static int fic_decode_frame(AVCodecContext *avctx, void *data, slice_size = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4 + 4); } - slice_size -= slice_off; - - if (slice_off > msize || slice_off + slice_size > msize) + if (slice_size < slice_off || slice_size > msize) continue; + slice_size -= slice_off; + ctx->slice_data[slice].src = sdata + slice_off; ctx->slice_data[slice].src_size = slice_size; ctx->slice_data[slice].slice_h = slice_h; |