From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH] avcodec/g729_parser: Check channels
Date: Sun, 27 Feb 2022 14:50:58 +0100
Message-ID: <20220227135058.15739-1-michael@niedermayer.cc> (raw)
Fixes: signed integer overflow: 10 * 808464428 cannot be represented in type 'int'
Fixes: assertion failure
Fixes: ticket9651
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/g729_parser.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavcodec/g729_parser.c b/libavcodec/g729_parser.c
index 8c06ce4ee6..4dcdeab651 100644
--- a/libavcodec/g729_parser.c
+++ b/libavcodec/g729_parser.c
@@ -48,6 +48,9 @@ static int g729_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
s->block_size = (avctx->bit_rate < 8000) ? G729D_6K4_BLOCK_SIZE : G729_8K_BLOCK_SIZE;
if (avctx->codec_id == AV_CODEC_ID_ACELP_KELVIN)
s->block_size++;
+ // channels > 2 is invalid, we pass the packet on unchanged
+ if (avctx->channels > 2)
+ s->block_size = 0;
s->block_size *= avctx->channels;
s->duration = avctx->frame_size;
}
--
2.17.1
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next reply other threads:[~2022-02-27 13:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-27 13:50 Michael Niedermayer [this message]
2022-02-27 14:02 ` Paul B Mahol
2022-03-07 23:30 ` Michael Niedermayer
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