dilim/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2026-08-05 07:30:37 +00:00
Code Issues Packages Projects Releases Wiki Activity

avformat/sdp: Check before appending ","

Browse Source 
Found by reviewing code related to CID1500301 String not null terminated

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5b82852519)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2024-05-08 04:07:40 +02:00
parent f1ebfc94c7
commit 303fea7956
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
libavformat/sdp.c
View File

@@ -195,6 +195,8 @@ static char *extradata2psets(AVCodecContext *c)
continue;
}
if (p != (psets + strlen(pset_string))) {
if (p - psets >= MAX_PSET_SIZE)
goto fail_in_loop;
*p = ',';
p++;
}
@@ -204,6 +206,7 @@ static char *extradata2psets(AVCodecContext *c)
}
if (!av_base64_encode(p, MAX_PSET_SIZE - (p - psets), r, r1 - r)) {
av_log(c, AV_LOG_ERROR, "Cannot Base64-encode %"PTRDIFF_SPECIFIER" %"PTRDIFF_SPECIFIER"!\n", MAX_PSET_SIZE - (p - psets), r1 - r);
fail_in_loop:
av_free(psets);
av_free(tmpbuf);