linux-cve-announce - CVE-2024-56563: ceph: fix cred leak in ceph_mds_check

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>] [day] [month] [year] [list]

Message-ID: <2024122714-CVE-2024-56563-148f@gregkh>
Date: Fri, 27 Dec 2024 15:23:14 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-56563: ceph: fix cred leak in ceph_mds_check_access()

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

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

ceph: fix cred leak in ceph_mds_check_access()

get_current_cred() increments the reference counter, but the
put_cred() call was missing.

The Linux kernel CVE team has assigned CVE-2024-56563 to this issue.


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

	Issue introduced in 6.10 with commit 596afb0b8933ba6ed7227adcc538db26feb25c74 and fixed in 6.12.4 with commit e3d1c9e2b811f13bdbbb962c2b17a6091c28522c
	Issue introduced in 6.10 with commit 596afb0b8933ba6ed7227adcc538db26feb25c74 and fixed in 6.13-rc1 with commit c5cf420303256dcd6ff175643e9e9558543c2047

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-2024-56563
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/ceph/mds_client.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/e3d1c9e2b811f13bdbbb962c2b17a6091c28522c
	https://git.kernel.org/stable/c/c5cf420303256dcd6ff175643e9e9558543c2047