[FFmpeg-cvslog] fftools/ffmpeg_mux_init: avoid invalid reads in forced keyframe parsing

[Anton Khirnov]

ffmpeg | branch: release/6.0 | Anton Khirnov <anton at khirnov.net> | Fri Mar 10 13:36:48 2023 +0100| [a0d65664984796c854e87d30e5187b067d6fde8a] | committer: Anton Khirnov

fftools/ffmpeg_mux_init: avoid invalid reads in forced keyframe parsing

Fixes #10243

(cherry picked from commit 1e406692e5a1e6d9ca852f746088a5610ff80d14)
Signed-off-by: Anton Khirnov <anton at khirnov.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a0d65664984796c854e87d30e5187b067d6fde8a
---

 fftools/ffmpeg_mux_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_mux_init.c b/fftools/ffmpeg_mux_init.c
index b3cc502fdd..09d24ba8e5 100644
--- a/fftools/ffmpeg_mux_init.c
+++ b/fftools/ffmpeg_mux_init.c
@@ -2063,7 +2063,7 @@ static void parse_forced_key_frames(KeyframeForceCtx *kf, const Muxer *mux,
         if (next)
             *next++ = 0;
 
-        if (!memcmp(p, "chapters", 8)) {
+        if (strstr(p, "chapters") == p) {
             AVChapter * const *ch = mux->fc->chapters;
             unsigned int    nb_ch = mux->fc->nb_chapters;
             int j;