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From: Jason Gunthorpe <jgg@nvidia.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: kevin.tian@intel.com, baolu.lu@linux.intel.com,
	iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH rc v3] iommufd: Fix struct iommu_hwpt_pgfault init and padding
Date: Tue, 21 Jan 2025 13:58:01 -0400	[thread overview]
Message-ID: <20250121175801.GW5556@nvidia.com> (raw)
In-Reply-To: <20250120195051.2450-1-nicolinc@nvidia.com>

On Mon, Jan 20, 2025 at 11:50:51AM -0800, Nicolin Chen wrote:
> The iommu_hwpt_pgfault is used to report IO page fault data to userspace,
> but iommufd_fault_fops_read was never zeroing its padding. This leaks the
> content of the kernel stack memory to userspace.

>  drivers/iommu/iommufd/fault.c | 2 +-
>  include/uapi/linux/iommufd.h  | 4 +++-
>  2 files changed, 4 insertions(+), 2 deletions(-)

Applied

Thanks,
Jason

      parent reply	other threads:[~2025-01-21 17:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-20 19:50 [PATCH rc v3] iommufd: Fix struct iommu_hwpt_pgfault init and padding Nicolin Chen
2025-01-21  1:21 ` Tian, Kevin
2025-01-21 17:58 ` Jason Gunthorpe [this message]

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