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avfilter/vf_kerndeint: Check for minimum height

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Fixes: out of array access

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e32b2c8886)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Marius Momeu
2026-05-02 15:02:54 +02:00
committed by Michael Niedermayer
parent f70eb1cb0b
commit e85eded615
1 changed files with 6 additions and 0 deletions
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libavfilter/vf_kerndeint.c
+6
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@@ -85,6 +85,12 @@ static int config_props(AVFilterLink *inlink)
kerndeint->is_packed_rgb = av_pix_fmt_desc_get(inlink->format)->flags & AV_PIX_FMT_FLAG_RGB;
kerndeint->vsub = desc->log2_chroma_h;
if (AV_CEIL_RSHIFT(inlink->h, kerndeint->vsub) < 4) {
av_log(inlink->dst, AV_LOG_ERROR,
"Input height %d is too small; minimum chroma plane height is 4\n",
inlink->h);
return AVERROR(EINVAL);
}
ret = av_image_alloc(kerndeint->tmp_data, kerndeint->tmp_linesize,
inlink->w, inlink->h, inlink->format, 16);