linux-kernel - Re: (subset) [PATCH 2/2] coredump: fix PIDFD_INFO

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Message-ID: <20250704-erbmaterial-hilflos-962418895b8e@brauner>
Date: Fri,  4 Jul 2025 10:57:18 +0200
From: Christian Brauner <brauner@...nel.org>
To: linux-kernel@...r.kernel.org,
	Laura Brehm <laurajfbrehm@...il.com>
Cc: Christian Brauner <brauner@...nel.org>,
	Laura Brehm <laurabrehm@....com>,
	linux-fsdevel@...r.kernel.org
Subject: Re: (subset) [PATCH 2/2] coredump: fix PIDFD_INFO_COREDUMP ioctl check

On Thu, 03 Jul 2025 14:02:44 +0200, Laura Brehm wrote:
> In Commit 1d8db6fd698de1f73b1a7d72aea578fdd18d9a87 ("pidfs,
> coredump: add PIDFD_INFO_COREDUMP"), the following code was added:
> 
>     if (mask & PIDFD_INFO_COREDUMP) {
>         kinfo.mask |= PIDFD_INFO_COREDUMP;
>         kinfo.coredump_mask = READ_ONCE(pidfs_i(inode)->__pei.coredump_mask);
>     }
>     [...]
>     if (!(kinfo.mask & PIDFD_INFO_COREDUMP)) {
>         task_lock(task);
>         if (task->mm)
>             kinfo.coredump_mask = pidfs_coredump_mask(task->mm->flags);
>         task_unlock(task);
>     }
> 
> [...]

Applied to the vfs.fixes branch of the vfs/vfs.git tree.
Patches in the vfs.fixes 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.fixes

[2/2] coredump: fix PIDFD_INFO_COREDUMP ioctl check
      https://git.kernel.org/vfs/vfs/c/8c0bcafc722c