RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-12 02:04:58 +00:00
Code Issues Projects Releases Wiki Activity

Add a check to vp6_parse_coeff_huffman to ensure it does not overread the input buffer.

Browse Source 
Originally committed as revision 19349 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-07-05 16:01:51 +00:00
parent 7576516a7e
commit ad92108694
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/vp6.c
View File

@ -372,6 +372,8 @@ static void vp6_parse_coeff_huffman(VP56Context *s)
if (coeff_idx) if (coeff_idx)
break; break;
} else { } else {
if (get_bits_count(&s->gb) >= s->gb.size_in_bits)
return;
coeff = get_vlc2(&s->gb, vlc_coeff->table, 9, 3); coeff = get_vlc2(&s->gb, vlc_coeff->table, 9, 3);
if (coeff == 0) { if (coeff == 0) {
if (coeff_idx) { if (coeff_idx) {