openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-23 11:19:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

mjpeg: Detect overreads in mjpeg_decode_scan() and error out.

Browse Source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-04-21 22:03:24 +02:00
parent 3eb15d9812
commit 73a51e00a7
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/mjpegdec.c
View File

@ -797,6 +797,10 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah, i
if (s->restart_interval && !s->restart_count)
s->restart_count = s->restart_interval;
if(get_bits_count(&s->gb)>s->gb.size_in_bits){
av_log(s->avctx, AV_LOG_ERROR, "overread %d\n", get_bits_count(&s->gb) - s->gb.size_in_bits);
return -1;
}
for(i=0;i<nb_components;i++) {
uint8_t *ptr;
int n, h, v, x, y, c, j;