linux-kernel - Re: [PATCH] iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device

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Message-Id: <165185066572.2780646.1953515178264833558.b4-ty@kernel.org>
Date:   Fri,  6 May 2022 17:07:05 +0100
From:   Will Deacon <will@...nel.org>
To:     Yang Yingliang <yangyingliang@...wei.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     catalin.marinas@....com, kernel-team@...roid.com,
        Will Deacon <will@...nel.org>, robin.murphy@....com,
        joro@...tes.org
Subject: Re: [PATCH] iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()

On Mon, 25 Apr 2022 19:41:36 +0800, Yang Yingliang wrote:
> It will cause null-ptr-deref when using 'res', if platform_get_resource()
> returns NULL, so move using 'res' after devm_ioremap_resource() that
> will check it to avoid null-ptr-deref.
> And use devm_platform_get_and_ioremap_resource() to simplify code.
> 
> 

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()
      https://git.kernel.org/will/c/d9ed8af1dee3

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
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