RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-25 00:32:31 +00:00
Code Issues Projects Releases Wiki Activity

avformat/assenc: Fix potential NULL + 1

Browse Source 
Incrementing a NULL pointer is undefined behaviour,
yet this is what would happen in case trailer were NULL
before the check.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-03-14 04:03:19 +01:00
parent 8e53233f68
commit 43991dbd05
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavformat/assenc.c
View File

@ -63,8 +63,8 @@ static int write_header(AVFormatContext *s)
if (trailer)
trailer = strstr(trailer, "\n");
if (trailer++) {
header_size = (trailer - par->extradata);
if (trailer) {
header_size = (++trailer - par->extradata);
ass->trailer_size = par->extradata_size - header_size;
if (ass->trailer_size)
ass->trailer = trailer;