linux-kernel - Re: [PATCH AUTOSEL 5.10] umount: Allow superblock owners to force umount

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <aAKDGmxq/snqaYhQ@duo.ucw.cz>
Date: Fri, 18 Apr 2025 18:51:38 +0200
From: Pavel Machek <pavel@....cz>
To: Sasha Levin <sashal@...nel.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Trond Myklebust <trond.myklebust@...merspace.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Christian Brauner <brauner@...nel.org>, viro@...iv.linux.org.uk,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.10] umount: Allow superblock owners to force
 umount

Hi!

> From: Trond Myklebust <trond.myklebust@...merspace.com>
> 
> [ Upstream commit e1ff7aa34dec7e650159fd7ca8ec6af7cc428d9f ]
> 
> Loosen the permission check on forced umount to allow users holding
> CAP_SYS_ADMIN privileges in namespaces that are privileged with respect
> to the userns that originally mounted the filesystem.

Should we be tweaking permissions in -stable?

Best regards,
								Pavel

-- 
I don't work for Nazis and criminals, and neither should you.
Boycott Putin, Trump, and Musk!

Download attachment "signature.asc" of type "application/pgp-signature" (196 bytes)