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Message-ID: <2024111924-CVE-2024-53073-16f8@gregkh>
Date: Tue, 19 Nov 2024 18:31:24 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53073: NFSD: Never decrement pending_async_copies on error

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

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

NFSD: Never decrement pending_async_copies on error

The error flow in nfsd4_copy() calls cleanup_async_copy(), which
already decrements nn->pending_async_copies.

The Linux kernel CVE team has assigned CVE-2024-53073 to this issue.


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

	Issue introduced in 6.11.3 with commit 6a488ad7745b and fixed in 6.11.7 with commit 1421883aa30c
	Issue introduced in 6.10.14 with commit b4e21431a0db

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-2024-53073
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/nfsd/nfs4proc.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/1421883aa30c5d26bc3370e2d19cb350f0d5ca28
	https://git.kernel.org/stable/c/8286f8b622990194207df9ab852e0f87c60d35e9

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