virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

eacmv: check for out of bound reads

Browse Source 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
This commit is contained in:
Laurent Aimar 2011-09-30 23:42:32 +00:00 committed by Janne Grunau
parent 8df8a87e3f
commit 46cb2f6a29
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libavcodec/eacmv.c
View File

@ -153,6 +153,9 @@ static int cmv_decode_frame(AVCodecContext *avctx,
CmvContext *s = avctx->priv_data; CmvContext *s = avctx->priv_data;
const uint8_t *buf_end = buf + buf_size; const uint8_t *buf_end = buf + buf_size;
if (buf_end - buf < EA_PREAMBLE_SIZE)
return AVERROR_INVALIDDATA;
if (AV_RL32(buf)==MVIh_TAG||AV_RB32(buf)==MVIh_TAG) { if (AV_RL32(buf)==MVIh_TAG||AV_RB32(buf)==MVIh_TAG) {
cmv_process_header(s, buf+EA_PREAMBLE_SIZE, buf_end); cmv_process_header(s, buf+EA_PREAMBLE_SIZE, buf_end);
return buf_size; return buf_size;