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

avformat/qcp: Avoid negative nb_rates 

Fixes: signed integer overflow: 2 * -1725947872 cannot be represented in type 'int'
Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_QCP_fuzzer-6726807632084992

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 1b865cc703)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-04-25 20:16:38 +02:00
parent e5308ce13e
commit 6b1756ae40
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libavformat/qcp.c
View File

@ -93,7 +93,8 @@ static int qcp_read_header(AVFormatContext *s)
QCPContext *c = s->priv_data;
AVStream *st = avformat_new_stream(s, NULL);
uint8_t buf[16];
int i, nb_rates;
int i;
unsigned nb_rates;
if (!st)
return AVERROR(ENOMEM);