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avcodec/hapdec: Clear tex buffer

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The code following makes no attempt to initialize all of the buffer

Fixes: use of uninitialized value
Fixes: 70980/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HAP_fuzzer-5329909059223552

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2024-08-11 23:15:32 +02:00
parent 4c62cbcae2
commit 7eeeda703b
1 changed files with 1 additions and 0 deletions
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libavcodec/hapdec.c
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@@ -310,6 +310,7 @@ static int hap_decode(AVCodecContext *avctx, AVFrame *frame,
ret = av_reallocp(&ctx->tex_buf, ctx->tex_size); ret = av_reallocp(&ctx->tex_buf, ctx->tex_size);
if (ret < 0) if (ret < 0)
return ret; return ret;
memset(ctx->tex_buf, 0, ctx->tex_size);
avctx->execute2(avctx, decompress_chunks_thread, NULL, avctx->execute2(avctx, decompress_chunks_thread, NULL,
ctx->chunk_results, ctx->chunk_count); ctx->chunk_results, ctx->chunk_count);