ffmpeg | branch: master | James Almer <jamr...@gmail.com> | Mon Jan 13 18:17:06 2025 -0300| [fd1772b7475d0d5673a5dd314ee78443d0be4cf1] | committer: James Almer
avformat/mov: fix potential unsigned underflow in loop condition if sc->tts_count is 0, this condition will wrap around to UINT_MAX and the code will try to dereference a NULL pointer. Fixes ticket #11417 Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fd1772b7475d0d5673a5dd314ee78443d0be4cf1 --- libavformat/mov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index 405d61fdf5..138120488a 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -5191,7 +5191,7 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom) } #if FF_API_R_FRAME_RATE - for (int i = 1; sc->stts_count && i < sc->tts_count - 1; i++) { + for (unsigned int i = 1; sc->stts_count && i + 1 < sc->tts_count; i++) { if (sc->tts_data[i].duration == sc->tts_data[0].duration) continue; stts_constant = 0; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
