RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

indeo3: fix null pointer dereference in vulnerable.mov 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-11-24 22:39:23 +01:00
parent eb511ef636
commit e421b79d01
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/indeo3.c
View File

@ -226,8 +226,11 @@ static void copy_cell(Indeo3DecodeContext *ctx, Plane *plane, Cell *cell)
/* setup output and reference pointers */
offset_dst = (cell->ypos << 2) * plane->pitch + (cell->xpos << 2);
dst = plane->pixels[ctx->buf_sel] + offset_dst;
if(cell->mv_ptr){
mv_y = cell->mv_ptr[0];
mv_x = cell->mv_ptr[1];
}else
mv_x= mv_y= 0;
offset = offset_dst + mv_y * plane->pitch + mv_x;
src = plane->pixels[ctx->buf_sel ^ 1] + offset;