linux-cve-announce - CVE-2025-22019: bcachefs: bch2_ioctl_subvolume

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 for Android: free password hash cracker in your pocket

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

Message-ID: <2025041640-CVE-2025-22019-e865@gregkh>
Date: Wed, 16 Apr 2025 12:20:41 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2025-22019: bcachefs: bch2_ioctl_subvolume_destroy() fixes

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

bcachefs: bch2_ioctl_subvolume_destroy() fixes

bch2_evict_subvolume_inodes() was getting stuck - due to incorrectly
pruning the dcache.

Also, fix missing permissions checks.

The Linux kernel CVE team has assigned CVE-2025-22019 to this issue.


Affected and fixed versions
===========================

	Fixed in 6.12.22 with commit 9e6e83e1e2d01b99e70cd7812d7f758a8def9fc8
	Fixed in 6.13.10 with commit 82383abd39abd635511b8956284a5cc8134c4dc1
	Fixed in 6.14.2 with commit 558317a5c61045d460a37372181e7b43c0c002bb
	Fixed in 6.15-rc1 with commit 707549600c4a012ed71c0204a7992a679880bf33

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2025-22019
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	fs/bcachefs/fs-ioctl.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/9e6e83e1e2d01b99e70cd7812d7f758a8def9fc8
	https://git.kernel.org/stable/c/82383abd39abd635511b8956284a5cc8134c4dc1
	https://git.kernel.org/stable/c/558317a5c61045d460a37372181e7b43c0c002bb
	https://git.kernel.org/stable/c/707549600c4a012ed71c0204a7992a679880bf33