linux-cve-announce - CVE-2023-53038: scsi: lpfc: Check kzalloc() in lpfc_sli4_cgn_params

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Message-ID: <2025050201-CVE-2023-53038-4b5c@gregkh>
Date: Fri,  2 May 2025 17:55:03 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53038: scsi: lpfc: Check kzalloc() in lpfc_sli4_cgn_params_read()

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

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

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

scsi: lpfc: Check kzalloc() in lpfc_sli4_cgn_params_read()

If kzalloc() fails in lpfc_sli4_cgn_params_read(), then we rely on
lpfc_read_object()'s routine to NULL check pdata.

Currently, an early return error is thrown from lpfc_read_object() to
protect us from NULL ptr dereference, but the errno code is -ENODEV.

Change the errno code to a more appropriate -ENOMEM.

The Linux kernel CVE team has assigned CVE-2023-53038 to this issue.


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

	Fixed in 5.15.105 with commit 67b8343998b84418bc5b5206aa01fe9b461a80ef
	Fixed in 6.1.22 with commit 4829a1e1171536978b240a1438789c2e4d5c9715
	Fixed in 6.2.9 with commit 908dd9a0853a88155a5a36018c7e2b32ccf20379
	Fixed in 6.3 with commit 312320b0e0ec21249a17645683fe5304d796aec1

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-2023-53038
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/scsi/lpfc/lpfc_init.c
	drivers/scsi/lpfc/lpfc_sli.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/67b8343998b84418bc5b5206aa01fe9b461a80ef
	https://git.kernel.org/stable/c/4829a1e1171536978b240a1438789c2e4d5c9715
	https://git.kernel.org/stable/c/908dd9a0853a88155a5a36018c7e2b32ccf20379
	https://git.kernel.org/stable/c/312320b0e0ec21249a17645683fe5304d796aec1