virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-02-20 07:48:15 +02:00
Code Issues Releases Activity

avcodec/parser: Check next index validity in ff_combine_frame()

Browse Source 
Fixes: out of array access
Fixes: 15522/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DNXHD_fuzzer-5747756078989312

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 15008db0fac6d97bb939fa7ef9e92d79bf1f7cb1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-07-06 09:21:52 +02:00
parent 59c578f5fa
commit 8f1eb713c6
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/parser.c
View File

@ -330,6 +330,9 @@ int ff_combine_frame(ParseContext *pc, int next,
for (; pc->overread > 0; pc->overread--)
pc->buffer[pc->index++] = pc->buffer[pc->overread_index++];
if (next > *buf_size)
return AVERROR(EINVAL);
/* flush remaining if EOF */
if (!*buf_size && next == END_NOT_FOUND)
next = 0;