ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Jun 21 23:15:17 2025 +0200| [0ffe97d9b9e10e88db29d8d910c24ec00ef24edc] | committer: Michael Niedermayer
avformat/mov: Check that sample_count is allocated in mov_parse_heif_items() Fixes: NULL pointer dereference Fixes: 416811958/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5425269114732544 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: James Almer <jamr...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0ffe97d9b9e10e88db29d8d910c24ec00ef24edc --- libavformat/mov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index 0f4a5cd9a3..bd6b23466b 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -10341,7 +10341,7 @@ static int mov_parse_heif_items(AVFormatContext *s) st->codecpar->height = item->height; err = sanity_checks(s, sc, item->item_id); - if (err) + if (err || !sc->sample_count) return AVERROR_INVALIDDATA; sc->sample_sizes[0] = item->extent_length; _______________________________________________ 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".
