linux-cve-announce - CVE-2022-49182: net: hns3: add vlan list lock to protect vlan list

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Message-ID: <2025022614-CVE-2022-49182-f154@gregkh>
Date: Wed, 26 Feb 2025 02:56:27 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49182: net: hns3: add vlan list lock to protect vlan list

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

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

net: hns3: add vlan list lock to protect vlan list

When adding port base VLAN, vf VLAN need to remove from HW and modify
the vlan state in vf VLAN list as false. If the periodicity task is
freeing the same node, it may cause "use after free" error.
This patch adds a vlan list lock to protect the vlan list.

The Linux kernel CVE team has assigned CVE-2022-49182 to this issue.


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

	Issue introduced in 5.1 with commit c6075b193462d9a3930fb41f587f94720658752a and fixed in 5.15.33 with commit 30f0ff7176efe8ac6c55f85bce26ed58bb608758
	Issue introduced in 5.1 with commit c6075b193462d9a3930fb41f587f94720658752a and fixed in 5.16.19 with commit 09e383ca97e798f9954189b741af54b5c51e7a97
	Issue introduced in 5.1 with commit c6075b193462d9a3930fb41f587f94720658752a and fixed in 5.17.2 with commit f58af41deeab0f45c9c80adf5f2de489ebbac3dd
	Issue introduced in 5.1 with commit c6075b193462d9a3930fb41f587f94720658752a and fixed in 5.18 with commit 1932a624ab88ff407d1a1d567fe581faa15dc725

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-2022-49182
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/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
	drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h


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/30f0ff7176efe8ac6c55f85bce26ed58bb608758
	https://git.kernel.org/stable/c/09e383ca97e798f9954189b741af54b5c51e7a97
	https://git.kernel.org/stable/c/f58af41deeab0f45c9c80adf5f2de489ebbac3dd
	https://git.kernel.org/stable/c/1932a624ab88ff407d1a1d567fe581faa15dc725