[FFmpeg-cvslog] avformat/mov: Corner case encryption error cleanup in mov_read_senc()

[Michael Niedermayer]

ffmpeg | branch: release/4.1 | Michael Niedermayer <michael at niedermayer.cc> | Wed Feb  9 22:01:03 2022 +0100| [b7a305ab6bd9b450d1e01e1f27b94fe089632a26] | committer: Michael Niedermayer

avformat/mov: Corner case encryption error cleanup in mov_read_senc()

Fixes: memleak
Fixes: 42341/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-4566632823914496

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 8ee0e4abcb8af36cae4eb24d4d6229461c1e3333)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b7a305ab6bd9b450d1e01e1f27b94fe089632a26
---

 libavformat/mov.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index b266687656..67dcbd5b7a 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -6049,6 +6049,8 @@ static int mov_read_senc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         }
         if (pb->eof_reached) {
             av_log(c->fc, AV_LOG_ERROR, "Hit EOF while reading senc\n");
+            if (ret >= 0)
+                av_encryption_info_free(encryption_index->encrypted_samples[i]);
             ret = AVERROR_INVALIDDATA;
         }