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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2023-07-06 22:48:55 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2023-07-09 02:40:14 +0200 |
| commit | e5ab2dab2c73710c753bf8a44171fc747625e9f3 (patch) | |
| tree | dd45671a7a4f413839919726984e39be06ccf2a0 /libavformat/evcdec.c | |
| parent | 0056d9f1765dc1ef0dcb81c6919de7e75575a889 (diff) | |
| download | ffmpeg-e5ab2dab2c73710c753bf8a44171fc747625e9f3.tar.gz | |
avformat/evcdec: Check that enough data has been read
Fixes potential use of uninitialized values
in evc_read_nal_unit_length().
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavformat/evcdec.c')
| -rw-r--r-- | libavformat/evcdec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/evcdec.c b/libavformat/evcdec.c index 9e09f8d264..6cce174f46 100644 --- a/libavformat/evcdec.c +++ b/libavformat/evcdec.c @@ -162,6 +162,8 @@ static int evc_read_packet(AVFormatContext *s, AVPacket *pkt) ret = avio_read(s->pb, buf, EVC_NALU_LENGTH_PREFIX_SIZE); if (ret < 0) return ret; + if (ret != EVC_NALU_LENGTH_PREFIX_SIZE) + return AVERROR_INVALIDDATA; nalu_size = evc_read_nal_unit_length(buf, EVC_NALU_LENGTH_PREFIX_SIZE); if (!nalu_size || nalu_size > INT_MAX) |