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avcodec/dxv: Check remaining bytes in dxv_decompress_raw()

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Fixes: Timeout
Fixes: 2006/clusterfuzz-testcase-minimized-5766515037044736

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 eb5049227033d946add93c0714bb8a28d94166f1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-04 15:41:18 +02:00
parent 90c38d6ab8
commit 439757d38a
1 changed files with 3 additions and 0 deletions
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3
libavcodec/dxv.c
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@ -331,6 +331,9 @@ static int dxv_decompress_raw(AVCodecContext *avctx)
DXVContext *ctx = avctx->priv_data;
GetByteContext *gbc = &ctx->gbc;
if (bytestream2_get_bytes_left(gbc) < ctx->tex_size)
return AVERROR_INVALIDDATA;
bytestream2_get_buffer(gbc, ctx->tex_data, ctx->tex_size);
return 0;
}