[FFmpeg-devel] [PATCH 5/5] avformat/mov: Check if heif item name is already allocated

[Michael Niedermayer]

Fixes: memleak
Fixes: 68212/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-4963488540721152

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavformat/mov.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 97a24e6737e..5b8278f736e 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -8136,6 +8136,9 @@ static int mov_read_infe(MOVContext *c, AVIOContext *pb, MOVAtom atom, int idx)
     avio_rb24(pb);  // flags.
     size -= 4;
 
+    if (c->heif_item[idx].name)
+        return AVERROR_INVALIDDATA;
+
     if (version < 2) {
         avpriv_report_missing_feature(c->fc, "infe version < 2");
         return 1;
-- 
2.43.2