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ffmpeg.wasm-core
Commit 36864236 authored by Michael Niedermayer's avatar Michael Niedermayer
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avcodec/indeo3: ensure offsets are non negative 

Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent 19ecd675
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libavcodec/indeo3.c
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...@@ -982,7 +982,8 @@ static int decode_frame_headers(Indeo3DecodeContext *ctx, AVCodecContext *avctx, ...@@ -982,7 +982,8 @@ static int decode_frame_headers(Indeo3DecodeContext *ctx, AVCodecContext *avctx,
ctx->y_data_size = ends[0] - starts[0]; ctx->y_data_size = ends[0] - starts[0];
ctx->v_data_size = ends[1] - starts[1]; ctx->v_data_size = ends[1] - starts[1];
ctx->u_data_size = ends[2] - starts[2]; ctx->u_data_size = ends[2] - starts[2];
if (FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 || if (FFMIN3(y_offset, v_offset, u_offset) < 0 ||
FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 ||
FFMIN3(y_offset, v_offset, u_offset) < gb.buffer - bs_hdr + 16 || FFMIN3(y_offset, v_offset, u_offset) < gb.buffer - bs_hdr + 16 ||
FFMIN3(ctx->y_data_size, ctx->v_data_size, ctx->u_data_size) <= 0) { FFMIN3(ctx->y_data_size, ctx->v_data_size, ctx->u_data_size) <= 0) {
av_log(avctx, AV_LOG_ERROR, "One of the y/u/v offsets is invalid\n"); av_log(avctx, AV_LOG_ERROR, "One of the y/u/v offsets is invalid\n");
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