virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-28 20:53:54 +02:00
Code Issues Releases Activity

avcodec/wmaprodec: Check offset

Browse Source 
Fixes: index 33280 out of bounds for type 'float [32768]'
Fixes: 18718/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XMA2_fuzzer-5635373899710464

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5473c7825e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-11-12 20:06:35 +01:00
parent 6d3a91c49d
commit 47d0725b91
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/wmaprodec.c
View File

@ -1775,6 +1775,11 @@ static int xma_decode_packet(AVCodecContext *avctx, void *data,
ret = decode_packet(avctx, &s->xma[s->current_stream], s->frames[s->current_stream],
&got_stream_frame_ptr, avpkt);
if (got_stream_frame_ptr && s->offset[s->current_stream] >= 64) {
got_stream_frame_ptr = 0;
ret = AVERROR_INVALIDDATA;
}
/* copy stream samples (1/2ch) to sample buffer (Nch) */
if (got_stream_frame_ptr) {
int start_ch = s->start_channel[s->current_stream];