From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-cve-announce@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: CVE-2025-21699: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag
Date: Wed, 12 Feb 2025 14:52:02 +0100 [thread overview]
Message-ID: <2025021202-CVE-2025-21699-029f@gregkh> (raw)
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag
Truncate an inode's address space when flipping the GFS2_DIF_JDATA flag:
depending on that flag, the pages in the address space will either use
buffer heads or iomap_folio_state structs, and we cannot mix the two.
The Linux kernel CVE team has assigned CVE-2025-21699 to this issue.
Affected and fixed versions
===========================
Fixed in 5.4.290 with commit 2b0bd5051ad1c1e9ef4879f18e15a7712c974f3e
Fixed in 5.10.234 with commit 8c41abc11aa8438c9ed2d973f97e66674c0355df
Fixed in 5.15.178 with commit 4e3ded34f3f3c9d7ed2aac7be8cf51153646574a
Fixed in 6.1.128 with commit 2a40a140e11fec699e128170ccaa98b6b82cb503
Fixed in 6.6.75 with commit 4dd57d1f0e9844311c635a7fb39abce4f2ac5a61
Fixed in 6.12.12 with commit 4516febe325342555bb09ca5b396fb816d655821
Fixed in 6.13.1 with commit 5bb1fd0855bb0abc7d97e44758d6ffed7882d2d0
Fixed in 6.14-rc1 with commit 7c9d9223802fbed4dee1ae301661bf346964c9d2
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-2025-21699
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/gfs2/file.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/2b0bd5051ad1c1e9ef4879f18e15a7712c974f3e
https://git.kernel.org/stable/c/8c41abc11aa8438c9ed2d973f97e66674c0355df
https://git.kernel.org/stable/c/4e3ded34f3f3c9d7ed2aac7be8cf51153646574a
https://git.kernel.org/stable/c/2a40a140e11fec699e128170ccaa98b6b82cb503
https://git.kernel.org/stable/c/4dd57d1f0e9844311c635a7fb39abce4f2ac5a61
https://git.kernel.org/stable/c/4516febe325342555bb09ca5b396fb816d655821
https://git.kernel.org/stable/c/5bb1fd0855bb0abc7d97e44758d6ffed7882d2d0
https://git.kernel.org/stable/c/7c9d9223802fbed4dee1ae301661bf346964c9d2
reply other threads:[~2025-02-12 13:53 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=2025021202-CVE-2025-21699-029f@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=cve@kernel.org \
--cc=linux-cve-announce@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.