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| author | John Rummell <jrummell@chromium.org> | 2020-03-30 21:30:33 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-04-03 00:58:07 +0200 |
| commit | 5b967f56b6d85f62446836fc8ef64d0dcfcbda17 (patch) | |
| tree | 5e5d8cd9d42c5b708e532d04c84081afe1544362 /libavformat/amr.c | |
| parent | 4700f7d6fce3ae3fcce86e069edf16b6cbae614b (diff) | |
| download | ffmpeg-5b967f56b6d85f62446836fc8ef64d0dcfcbda17.tar.gz | |
libavformat/amr.c: Check return value from avio_read()
If the buffer doesn't contain enough bytes when reading a stream,
fail rather than continuing on with initialized data. Caught by
Chromium fuzzeras (crbug.com/1065731).
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/amr.c')
| -rw-r--r-- | libavformat/amr.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavformat/amr.c b/libavformat/amr.c index eccbbde5b0..b8a5debb16 100644 --- a/libavformat/amr.c +++ b/libavformat/amr.c @@ -89,13 +89,15 @@ static int amr_read_header(AVFormatContext *s) AVStream *st; uint8_t header[9]; - avio_read(pb, header, 6); + if (avio_read(pb, header, 6) != 6) + return AVERROR_INVALIDDATA; st = avformat_new_stream(s, NULL); if (!st) return AVERROR(ENOMEM); if (memcmp(header, AMR_header, 6)) { - avio_read(pb, header + 6, 3); + if (avio_read(pb, header + 6, 3) != 3) + return AVERROR_INVALIDDATA; if (memcmp(header, AMRWB_header, 9)) { return -1; } |