diff options
Diffstat (limited to 'gst-libs/ext/libav/libavcodec/pcx.c')
| -rw-r--r-- | gst-libs/ext/libav/libavcodec/pcx.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gst-libs/ext/libav/libavcodec/pcx.c b/gst-libs/ext/libav/libavcodec/pcx.c index ba3703a..223429d 100644 --- a/gst-libs/ext/libav/libavcodec/pcx.c +++ b/gst-libs/ext/libav/libavcodec/pcx.c @@ -184,7 +184,13 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, } else if (nplanes == 1 && bits_per_pixel == 8) { const uint8_t *palstart = bufstart + buf_size - 769; - for (y=0; y<h; y++, ptr+=stride) { + if (buf_size < 769) { + av_log(avctx, AV_LOG_ERROR, "File is too short\n"); + ret = buf_size; + goto end; + } + + for (y = 0; y < h; y++, ptr += stride) { buf = pcx_rle_decode(buf, buf_end, scanline, bytes_per_scanline, compressed); memcpy(ptr, scanline, w); @@ -196,6 +202,7 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, } if (*buf++ != 12) { av_log(avctx, AV_LOG_ERROR, "expected palette after image data\n"); + ret = buf_size; goto end; } |