32 lines
1.2 KiB
Diff
32 lines
1.2 KiB
Diff
From 28c7094b25b689185155a6833caf2747b94774a4 Mon Sep 17 00:00:00 2001
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From: Michael Niedermayer <michael@niedermayer.cc>
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Date: Thu, 4 Apr 2024 00:15:27 +0200
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Subject: [PATCH] avcodec/wavarc: fix signed integer overflow in block type
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6/19
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Fixes: signed integer overflow: -2088796289 + -91276551 cannot be represented in type 'int'
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Fixes: 67772/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-6533568953122816
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Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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---
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libavcodec/wavarc.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/libavcodec/wavarc.c b/libavcodec/wavarc.c
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index 7083494cd8..b4b26958e6 100644
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--- a/libavcodec/wavarc.c
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+++ b/libavcodec/wavarc.c
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@@ -647,7 +647,7 @@ static int decode_5elp(AVCodecContext *avctx,
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for (int o = 0; o < order; o++)
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sum += s->filter[ch][o] * (unsigned)samples[n + 70 - o - 1];
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- samples[n + 70] += ac_out[n] + (sum >> 4);
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+ samples[n + 70] += ac_out[n] + (unsigned)(sum >> 4);
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}
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for (int n = 0; n < 70; n++)
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--
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2.33.0
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