From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 1/5] avcodec/wavarc: fix signed integer overflow in block type 6/19
Date: Thu, 4 Apr 2024 00:51:30 +0200
Message-ID: <20240403225134.31764-1-michael@niedermayer.cc> (raw)
Fixes: signed integer overflow: -2088796289 + -91276551 cannot be represented in type 'int'
Fixes: 67772/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-6533568953122816
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/wavarc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/wavarc.c b/libavcodec/wavarc.c
index 7083494cd81..b4b26958e6f 100644
--- a/libavcodec/wavarc.c
+++ b/libavcodec/wavarc.c
@@ -647,7 +647,7 @@ static int decode_5elp(AVCodecContext *avctx,
for (int o = 0; o < order; o++)
sum += s->filter[ch][o] * (unsigned)samples[n + 70 - o - 1];
- samples[n + 70] += ac_out[n] + (sum >> 4);
+ samples[n + 70] += ac_out[n] + (unsigned)(sum >> 4);
}
for (int n = 0; n < 70; n++)
--
2.17.1
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next reply other threads:[~2024-04-03 22:51 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-03 22:51 Michael Niedermayer [this message]
2024-04-03 22:51 ` [FFmpeg-devel] [PATCH 2/5] avformat/iamf_parse: Check sound_system Michael Niedermayer
2024-04-03 22:51 ` [FFmpeg-devel] [PATCH 3/5] swscale/utils: Fix xInc overflow Michael Niedermayer
2024-04-03 22:51 ` [FFmpeg-devel] [PATCH 4/5] avformat/mxfdec: Check index_edit_rate Michael Niedermayer
2024-04-08 10:39 ` Tomas Härdin
2024-04-08 19:46 ` Marton Balint
2024-04-09 19:21 ` Tomas Härdin
2024-04-09 20:58 ` Marton Balint
2024-04-10 11:18 ` Tomas Härdin
2024-04-14 20:55 ` Marton Balint
2024-04-15 9:02 ` Tomas Härdin
2024-04-15 17:52 ` Marton Balint
2024-04-03 22:51 ` [FFmpeg-devel] [PATCH 5/5] avformat/pcm: Use 64bit in bitrate computation Michael Niedermayer
2024-04-04 17:12 ` Marton Balint
2024-04-04 17:17 ` Andreas Rheinhardt
2024-04-04 18:41 ` Michael Niedermayer
2024-04-04 16:47 ` [FFmpeg-devel] [PATCH 1/5] avcodec/wavarc: fix signed integer overflow in block type 6/19 Michael Niedermayer
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