har0ke/FFmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Avoid a deadlock when decoding wma.

Browse Source 
Fixes ticket #2925.
This commit is contained in:
Carl Eugen Hoyos 2013-09-02 08:32:24 +02:00
parent cdd5df8189
commit ec8a4841f7
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/wmadec.c
View File

@ -512,6 +512,10 @@ static int wma_decode_block(WMACodecContext *s)
coef escape coding */
total_gain = 1;
for(;;) {
if (get_bits_left(&s->gb) < 7) {
av_log(s->avctx, AV_LOG_ERROR, "total_gain overread\n");
return AVERROR_INVALIDDATA;
}
a = get_bits(&s->gb, 7);
total_gain += a;
if (a != 127)