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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-12-08 01:58:20 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-12-24 02:55:18 +0100 |
| commit | 2336fc44acc15b9f2e8f6dcef1651f90d15c9cd9 (patch) | |
| tree | de73106265c89e0877f1c982bddae5b287c3bf0f | |
| parent | 34c06f52849a51c58a11ae530bd4c30012a3d6a0 (diff) | |
| download | ffmpeg-2336fc44acc15b9f2e8f6dcef1651f90d15c9cd9.tar.gz | |
avcodec/rv60dec: Use get_bits_long()
Fixes: 378634700/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-5008344043028480
Fixes: assertion failure
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/rv60dec.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libavcodec/rv60dec.c b/libavcodec/rv60dec.c index 449650223d..4cc71dcd6e 100644 --- a/libavcodec/rv60dec.c +++ b/libavcodec/rv60dec.c @@ -395,10 +395,13 @@ static int read_slice_sizes(RV60Context *s, GetBitContext *gb) for (int i = 0; i < s->cu_height; i++) s->slice[i].sign = get_bits1(gb); - s->slice[0].size = last_size = sum = get_bits(gb, nbits); + s->slice[0].size = last_size = sum = get_bits_long(gb, nbits); + + if (sum < 0) + return AVERROR_INVALIDDATA; for (int i = 1; i < s->cu_height; i++) { - int diff = get_bits(gb, nbits); + int diff = get_bits_long(gb, nbits); if (s->slice[i].sign) last_size += diff; else |