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
prev 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]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250121175801.GW5556@nvidia.com \
--to=jgg@nvidia.com \
--cc=baolu.lu@linux.intel.com \
--cc=iommu@lists.linux.dev \
--cc=kevin.tian@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=nicolinc@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox