ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Mar 23 00:08:17 2024 +0100| [0a114d7318ab0e2499531bf496392d1bee4130fc] | committer: Michael Niedermayer
avformat/mov: Do not deallocate heif_item in a input dependant way Fixes: out of array access Fixes: 67070/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5685384082161664 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=0a114d7318ab0e2499531bf496392d1bee4130fc --- libavformat/mov.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index a4d95a4b23..8483b34a9a 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -8079,7 +8079,7 @@ static int mov_read_iloc(MOVContext *c, AVIOContext *pb, MOVAtom atom) } item_count = (version < 2) ? avio_rb16(pb) : avio_rb32(pb); - heif_item = av_realloc_array(c->heif_item, item_count, sizeof(*c->heif_item)); + heif_item = av_realloc_array(c->heif_item, FFMAX(item_count, c->nb_heif_item), sizeof(*c->heif_item)); if (!heif_item) return AVERROR(ENOMEM); c->heif_item = heif_item; @@ -8201,7 +8201,7 @@ static int mov_read_iinf(MOVContext *c, AVIOContext *pb, MOVAtom atom) avio_rb24(pb); // flags. entry_count = version ? avio_rb32(pb) : avio_rb16(pb); - heif_item = av_realloc_array(c->heif_item, entry_count, sizeof(*c->heif_item)); + heif_item = av_realloc_array(c->heif_item, FFMAX(entry_count, c->nb_heif_item), sizeof(*c->heif_item)); if (!heif_item) return AVERROR(ENOMEM); c->heif_item = heif_item; _______________________________________________ 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".
