[FFmpeg-cvslog] avformat/mov: add an EOF check in IPRP

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sat Jun 22 00:34:28 2024 +0200| [586f6fda1d814f0ddc32e652fde5e203d552f6d0] | committer: Michael Niedermayer

avformat/mov: add an EOF check in IPRP

Fixes: Timeout
Fixes: 69230/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6540512101203968

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=586f6fda1d814f0ddc32e652fde5e203d552f6d0
---

 libavformat/mov.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index dfe056660a..b74e43e214 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -8938,6 +8938,11 @@ static int mov_read_iprp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         int item_id = version ? avio_rb32(pb) : avio_rb16(pb);
         int assoc_count = avio_r8(pb);
 
+        if (avio_feof(pb)) {
+            ret = AVERROR_INVALIDDATA;
+            goto fail;
+        }
+
         for (int j = 0; j < assoc_count; j++) {
             MOVAtoms *ref;
             int index = avio_r8(pb) & 0x7f;