linux-cve-announce - CVE-2022-49332: scsi: lpfc: Address NULL pointer dereference after starget_to

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Message-ID: <2025022639-CVE-2022-49332-ecf5@gregkh>
Date: Wed, 26 Feb 2025 03:10:06 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49332: scsi: lpfc: Address NULL pointer dereference after starget_to_rport()

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

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

scsi: lpfc: Address NULL pointer dereference after starget_to_rport()

Calls to starget_to_rport() may return NULL.  Add check for NULL rport
before dereference.

The Linux kernel CVE team has assigned CVE-2022-49332 to this issue.


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

	Issue introduced in 5.18 with commit bb21fc9911eea92afd476f7e64b327716e042a25 and fixed in 5.18.4 with commit 68fcff1127e4995ddbd4b6861892a25c23db3f70
	Issue introduced in 5.18 with commit bb21fc9911eea92afd476f7e64b327716e042a25 and fixed in 5.19 with commit 6f808bd78e8296b4ded813b7182988d57e1f6176

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-2022-49332
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_scsi.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/68fcff1127e4995ddbd4b6861892a25c23db3f70
	https://git.kernel.org/stable/c/6f808bd78e8296b4ded813b7182988d57e1f6176