RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-02-21 14:26:59 +00:00
Code Issues Projects Releases Wiki Activity

avcodec/indeo3: ensure offsets are non negative

Browse Source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 368642361f)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-12-18 18:57:27 +01:00
parent 1fa9b7feb6
commit 932e5c374a
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libavcodec/indeo3.c
View File

@ -981,7 +981,8 @@ static int decode_frame_headers(Indeo3DecodeContext *ctx, AVCodecContext *avctx,
ctx->y_data_size = ends[0] - starts[0];
ctx->v_data_size = ends[1] - starts[1];
ctx->u_data_size = ends[2] - starts[2];
if (FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 ||
if (FFMIN3(y_offset, v_offset, u_offset) < 0 ||
FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 ||
FFMIN3(y_offset, v_offset, u_offset) < gb.buffer - bs_hdr + 16 ||
FFMIN3(ctx->y_data_size, ctx->v_data_size, ctx->u_data_size) <= 0) {
av_log(avctx, AV_LOG_ERROR, "One of the y/u/v offsets is invalid\n");