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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-12 00:16:01 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-12 15:29:03 +0100 |
| commit | 9f0602a717c3939529bfe49734f3d8029dc36625 (patch) | |
| tree | b0642387f893654f873d991080170d4277e10e33 /libavcodec | |
| parent | fc263f073ed3cb4082194b594ffeb4dfce6a2c5d (diff) | |
| download | ffmpeg-9f0602a717c3939529bfe49734f3d8029dc36625.tar.gz | |
avcodec/sgidec: do not forget the number of components in read_uncompressed_sgi()
Fixes: out of array access
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SGI_fuzzer-6704753329700864
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SGI_fuzzer-6683986844057600
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SGI_fuzzer-6697387691474944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/sgidec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/sgidec.c b/libavcodec/sgidec.c index 6ff2ee97f6..92083f23de 100644 --- a/libavcodec/sgidec.c +++ b/libavcodec/sgidec.c @@ -159,7 +159,7 @@ static int read_uncompressed_sgi(uint8_t *const out[4], const ptrdiff_t stride[4 unsigned rowsize = width * bytes_per_channel; /* Test buffer size. */ - if (rowsize * (int64_t)height > bytestream2_get_bytes_left(g)) + if (rowsize * (int64_t)height * nb_components > bytestream2_get_bytes_left(g)) return AVERROR_INVALIDDATA; for (unsigned z = 0; z < nb_components; z++) { |