Re: [PATCH v4] iommu/riscv: prevent NULL deref in iova_to_phys - patchwork-bot+linux-riscv

From: patchwork-bot+linux-riscv@kernel.org
To: XianLiang Huang <huangxianliang@lanxincomputing.com>
Cc: linux-riscv@lists.infradead.org, tjeznach@rivosinc.com,
	markus.elfring@web.de, joro@8bytes.org, will@kernel.org,
	robin.murphy@arm.com, paul.walmsley@sifive.com,
	palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr,
	iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4] iommu/riscv: prevent NULL deref in iova_to_phys
Date: Thu, 09 Oct 2025 01:07:01 +0000	[thread overview]
Message-ID: <175997202124.3661959.1599667136766880381.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20250820072248.312-1-huangxianliang@lanxincomputing.com>

Hello:

This patch was applied to riscv/linux.git (for-next)
by Joerg Roedel <joerg.roedel@amd.com>:

On Wed, 20 Aug 2025 15:22:48 +0800 you wrote:
> The riscv_iommu_pte_fetch() function returns either NULL for
> unmapped/never-mapped iova, or a valid leaf pte pointer that requires no
> further validation.
> 
> riscv_iommu_iova_to_phys() failed to handle NULL returns. Prevent null pointer
> dereference in riscv_iommu_iova_to_phys(), and remove the pte validation.
> 
> [...]

Here is the summary with links:
  - [v4] iommu/riscv: prevent NULL deref in iova_to_phys
    https://git.kernel.org/riscv/c/99d4d1a07087

You are awesome, thank you!
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