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avcodec/cdxl: Check format for BGR24

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Fixes: out of array access
Fixes: 1427/clusterfuzz-testcase-minimized-5020737339392000

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-08 11:46:03 +02:00
parent 78f51ecb74
commit 1e42736b95
1 changed files with 1 additions and 1 deletions
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2
libavcodec/cdxl.c
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@ -279,7 +279,7 @@ static int cdxl_decode_frame(AVCodecContext *avctx, void *data,
return AVERROR_INVALIDDATA;
if (!encoding && c->palette_size && c->bpp <= 8 && c->format != CHUNKY) {
avctx->pix_fmt = AV_PIX_FMT_PAL8;
} else if (encoding == 1 && (c->bpp == 6 || c->bpp == 8)) {
} else if (encoding == 1 && (c->bpp == 6 || c->bpp == 8) && c->format != CHUNKY) {
if (c->palette_size != (1 << (c->bpp - 1)))
return AVERROR_INVALIDDATA;
avctx->pix_fmt = AV_PIX_FMT_BGR24;