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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-20 00:00:27 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-02 14:18:21 +0100 |
| commit | 4706b4455bff60c14138c0986690e5207a32e53c (patch) | |
| tree | 154ac8a5b579f98321a5986db3992dff12ae0efd | |
| parent | cb946af7e2d7696b80e6c5b1afc32d1cb252a531 (diff) | |
| download | ffmpeg-4706b4455bff60c14138c0986690e5207a32e53c.tar.gz | |
avformat/asfdec_o: Check for EOF in asf_read_marker()
Fixes: Timeout
Fixes: 26460/clusterfuzz-testcase-minimized-ffmpeg_dem_ASF_O_fuzzer-5710884393189376
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9e3d09f435f83f9653056b2fecc4d03ac45f3ffd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/asfdec_o.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/asfdec_o.c b/libavformat/asfdec_o.c index 4e9f25219a..893368702e 100644 --- a/libavformat/asfdec_o.c +++ b/libavformat/asfdec_o.c @@ -245,6 +245,9 @@ static int asf_read_marker(AVFormatContext *s, const GUIDParseTable *g) avio_skip(pb, 4); // flags len = avio_rl32(pb); + if (avio_feof(pb)) + return AVERROR_INVALIDDATA; + if ((ret = avio_get_str16le(pb, len, name, sizeof(name))) < len) avio_skip(pb, len - ret); |