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avcodec/rscc: Check side data size before use
Fixes out of array read Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -310,12 +310,15 @@ static int rscc_decode_frame(AVCodecContext *avctx, void *data,
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frame->pict_type = AV_PICTURE_TYPE_P;
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}
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if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
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int size;
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const uint8_t *pal = av_packet_get_side_data(avpkt,
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AV_PKT_DATA_PALETTE,
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NULL);
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if (pal) {
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&size);
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if (pal && size == AV_PKT_DATA_PALETTE) {
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frame->palette_has_changed = 1;
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memcpy(ctx->pal, pal, AVPALETTE_SIZE);
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} else if (pal) {
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av_log(avctx, AV_LOG_ERROR, "Palette size %d is wrong\n", size);
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}
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memcpy (frame->data[1], ctx->pal, AVPALETTE_SIZE);
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}
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