Download-Tools/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-29 14:56:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

avformat/mpeg: Check len in mpegps_probe()

Browse Source 
Fixes: CID1473590 Untrusted loop bound

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-06-07 00:19:01 +02:00
parent 64df7d4c1e
commit ca237a841e
No known key found for this signature in database
GPG Key ID: B18E8928B3948D64
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libavformat/mpeg.c
View File

@ -76,6 +76,9 @@ static int mpegps_probe(const AVProbeData *p)
int pes = endpes <= i && check_pes(p->buf + i, p->buf + p->buf_size);
int pack = check_pack_header(p->buf + i);
if (len > INT_MAX - i)
break;
if (code == SYSTEM_HEADER_START_CODE)
sys++;
else if (code == PACK_START_CODE && pack)