linux-kernel - Re: [PATCH V3] fs: generalize anon_inode_make_secure

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Message-ID: <20250701-liberal-geklebt-4c929903fc02@brauner>
Date: Tue,  1 Jul 2025 10:33:25 +0200
From: Christian Brauner <brauner@...nel.org>
To: Shivank Garg <shivankg@....com>
Cc: Christian Brauner <brauner@...nel.org>,
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Subject: Re: [PATCH V3] fs: generalize anon_inode_make_secure_inode() and fix secretmem LSM bypass

On Thu, 26 Jun 2025 19:14:29 +0000, Shivank Garg wrote:
> Extend anon_inode_make_secure_inode() to take superblock parameter and
> make it available via fs.h. This allows other subsystems to create
> anonymous inodes with proper security context.
> 
> Use this function in secretmem to fix a security regression, where
> S_PRIVATE flag wasn't cleared after alloc_anon_inode(), causing
> LSM/SELinux checks to be skipped.
> 
> [...]

Applied to the vfs-6.17.misc branch of the vfs/vfs.git tree.
Patches in the vfs-6.17.misc branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs-6.17.misc

[1/1] fs: generalize anon_inode_make_secure_inode() and fix secretmem LSM bypass
      https://git.kernel.org/vfs/vfs/c/4dc65f072c2b