[alsa-devel] [PATCH] ASoC: compress: fix unsigned integer overflow check

[alsa-devel] [PATCH] ASoC: compress: fix unsigned integer overflow check

[Srinivas Kandagatla]

From: Xiaojun Sang <xsang@codeaurora.org>

Parameter fragments and fragment_size are type of u32. U32_MAX is
the correct check.

Signed-off-by: Xiaojun Sang <xsang@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 sound/core/compress_offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 41905afada63..f34ce564d92c 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -528,7 +528,7 @@ static int snd_compress_check_input(struct snd_compr_params *params)
 {
 	/* first let's check the buffer parameter's */
 	if (params->buffer.fragment_size == 0 ||
-	    params->buffer.fragments > INT_MAX / params->buffer.fragment_size ||
+	    params->buffer.fragments > U32_MAX / params->buffer.fragment_size ||
 	    params->buffer.fragments == 0)
 		return -EINVAL;
 
-- 
2.21.0

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Re: [alsa-devel] [PATCH] ASoC: compress: fix unsigned integer overflow check

[Vinod Koul]

On 21-10-19, 10:54, Srinivas Kandagatla wrote:
> From: Xiaojun Sang <xsang@codeaurora.org>
> 
> Parameter fragments and fragment_size are type of u32. U32_MAX is
> the correct check.

Acked-by: Vinod Koul <vkoul@kernel.org>

> Signed-off-by: Xiaojun Sang <xsang@codeaurora.org>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  sound/core/compress_offload.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
> index 41905afada63..f34ce564d92c 100644
> --- a/sound/core/compress_offload.c
> +++ b/sound/core/compress_offload.c
> @@ -528,7 +528,7 @@ static int snd_compress_check_input(struct snd_compr_params *params)
>  {
>  	/* first let's check the buffer parameter's */
>  	if (params->buffer.fragment_size == 0 ||
> -	    params->buffer.fragments > INT_MAX / params->buffer.fragment_size ||
> +	    params->buffer.fragments > U32_MAX / params->buffer.fragment_size ||
>  	    params->buffer.fragments == 0)
>  		return -EINVAL;
>  
> -- 
> 2.21.0

-- 
~Vinod
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[alsa-devel] Applied "ASoC: compress: fix unsigned integer overflow check" to the asoc tree

[Mark Brown]

The patch

   ASoC: compress: fix unsigned integer overflow check

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

From d3645b055399538415586ebaacaedebc1e5899b0 Mon Sep 17 00:00:00 2001
From: Xiaojun Sang <xsang@codeaurora.org>
Date: Mon, 21 Oct 2019 10:54:32 +0100
Subject: [PATCH] ASoC: compress: fix unsigned integer overflow check

Parameter fragments and fragment_size are type of u32. U32_MAX is
the correct check.

Signed-off-by: Xiaojun Sang <xsang@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20191021095432.5639-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/core/compress_offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 99b882158705..942af8c29b79 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -528,7 +528,7 @@ static int snd_compress_check_input(struct snd_compr_params *params)
 {
 	/* first let's check the buffer parameter's */
 	if (params->buffer.fragment_size == 0 ||
-	    params->buffer.fragments > INT_MAX / params->buffer.fragment_size ||
+	    params->buffer.fragments > U32_MAX / params->buffer.fragment_size ||
 	    params->buffer.fragments == 0)
 		return -EINVAL;
 
-- 
2.20.1

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