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From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 3/5] avcodec/vmdaudio: Fix channels count bug
Date: Mon, 21 Mar 2022 21:19:44 +0100
Message-ID: <20220321201946.16919-3-michael@niedermayer.cc> (raw)
In-Reply-To: <20220321201946.16919-1-michael@niedermayer.cc>

Fixes: division by zero
Fixes: 45811/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMDAUDIO_fuzzer-6412592581574656

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/vmdaudio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/vmdaudio.c b/libavcodec/vmdaudio.c
index 045a2da410..875930061a 100644
--- a/libavcodec/vmdaudio.c
+++ b/libavcodec/vmdaudio.c
@@ -85,7 +85,7 @@ static av_cold int vmdaudio_decode_init(AVCodecContext *avctx)
     }
 
     av_channel_layout_uninit(&avctx->ch_layout);
-    av_channel_layout_default(&avctx->ch_layout, channels == 1);
+    av_channel_layout_default(&avctx->ch_layout, channels);
 
     if (avctx->bits_per_coded_sample == 16)
         avctx->sample_fmt = AV_SAMPLE_FMT_S16;
-- 
2.17.1

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  parent reply	other threads:[~2022-03-21 20:21 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-21 20:19 [FFmpeg-devel] [PATCH 1/5] avcodec/vp9_superframe_bsf: Check in size Michael Niedermayer
2022-03-21 20:19 ` [FFmpeg-devel] [PATCH 2/5] avcodec/allcodecs: Dont play with NULLs Michael Niedermayer
2022-03-21 20:33   ` James Almer
2022-03-21 20:55     ` Andreas Rheinhardt
2022-03-21 20:48   ` Andreas Rheinhardt
2022-03-21 21:03     ` Michael Niedermayer
2022-03-21 20:19 ` Michael Niedermayer [this message]
2022-03-28 18:07   ` [FFmpeg-devel] [PATCH 3/5] avcodec/vmdaudio: Fix channels count bug Michael Niedermayer
2022-03-21 20:19 ` [FFmpeg-devel] [PATCH 4/5] avcodec/diracdec: avoid signed integer overflow in global mv Michael Niedermayer
2022-04-03 21:22   ` Michael Niedermayer
2022-03-21 20:19 ` [FFmpeg-devel] [PATCH 5/5] avcodec/exr: Avoid signed overflow in displayWindow Michael Niedermayer
2022-03-22 10:42   ` Paul B Mahol
2022-04-03 21:23     ` Michael Niedermayer

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