linux-cve-announce - CVE-2023-53792: nvme-core: fix memory leak in dhchap_ctrl

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Message-ID: <2025120941-CVE-2023-53792-3de7@gregkh>
Date: Tue,  9 Dec 2025 09:02:13 +0900
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53792: nvme-core: fix memory leak in dhchap_ctrl_secret

From: Greg Kroah-Hartman <gregkh@...nel.org>

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

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

nvme-core: fix memory leak in dhchap_ctrl_secret

Free dhchap_secret in nvme_ctrl_dhchap_ctrl_secret_store() before we
return when nvme_auth_generate_key() returns error.

The Linux kernel CVE team has assigned CVE-2023-53792 to this issue.


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

	Issue introduced in 6.0 with commit f50fff73d620cd6e8f48bc58d4f1c944615a3fea and fixed in 6.1.39 with commit 43d0724d756a13694f612a8a151f835ad6425b93
	Issue introduced in 6.0 with commit f50fff73d620cd6e8f48bc58d4f1c944615a3fea and fixed in 6.3.13 with commit 39b90fc75943406d2bd60fd1ea041aca2559cc5f
	Issue introduced in 6.0 with commit f50fff73d620cd6e8f48bc58d4f1c944615a3fea and fixed in 6.4.4 with commit 6ec30a62789913b1bd0f0d44ea4d0d2d5608b1e8
	Issue introduced in 6.0 with commit f50fff73d620cd6e8f48bc58d4f1c944615a3fea and fixed in 6.5 with commit 99c2dcc8ffc24e210a3aa05c204d92f3ef460b05

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-2023-53792
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:
	drivers/nvme/host/core.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/43d0724d756a13694f612a8a151f835ad6425b93
	https://git.kernel.org/stable/c/39b90fc75943406d2bd60fd1ea041aca2559cc5f
	https://git.kernel.org/stable/c/6ec30a62789913b1bd0f0d44ea4d0d2d5608b1e8
	https://git.kernel.org/stable/c/99c2dcc8ffc24e210a3aa05c204d92f3ef460b05