diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-09-23 20:05:37 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2025-01-21 22:55:11 +0100 |
| commit | 6ecc96f4d08d74b0590ab03f39f93f386910c4c0 (patch) | |
| tree | 70fa93023dba71569fbc67ebaaab25880b40ad0a | |
| parent | 90ff3ae9769dc79fd18400eedc97c352fa73926d (diff) | |
| download | ffmpeg-6ecc96f4d08d74b0590ab03f39f93f386910c4c0.tar.gz | |
avformat/mxfdec: Check avio_read() success in mxf_decrypt_triplet()
Fixes: Use of uninitialized memory
Fixes: 71444/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-5448597561212928
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mxfdec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 02db8d4cb3..6bc8980d9c 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -697,7 +697,8 @@ static int mxf_decrypt_triplet(AVFormatContext *s, AVPacket *pkt, KLVPacket *klv if (size < 32 || size - 32 < orig_size || (int)orig_size != orig_size) return AVERROR_INVALIDDATA; avio_read(pb, ivec, 16); - avio_read(pb, tmpbuf, 16); + if (avio_read(pb, tmpbuf, 16) != 16) + return AVERROR_INVALIDDATA; if (mxf->aesc) av_aes_crypt(mxf->aesc, tmpbuf, tmpbuf, 1, ivec, 1); if (memcmp(tmpbuf, checkv, 16)) |