linux-cve-announce - CVE-2022-49725: i40e: Fix call trace in setup_tx

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Message-ID: <2025022633-CVE-2022-49725-5494@gregkh>
Date: Wed, 26 Feb 2025 03:24:48 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49725: i40e: Fix call trace in setup_tx_descriptors

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

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

i40e: Fix call trace in setup_tx_descriptors

After PF reset and ethtool -t there was call trace in dmesg
sometimes leading to panic. When there was some time, around 5
seconds, between reset and test there were no errors.

Problem was that pf reset calls i40e_vsi_close in prep_for_reset
and ethtool -t calls i40e_vsi_close in diag_test. If there was not
enough time between those commands the second i40e_vsi_close starts
before previous i40e_vsi_close was done which leads to crash.

Add check to diag_test if pf is in reset and don't start offline
tests if it is true.
Add netif_info("testing failed") into unhappy path of i40e_diag_test()

The Linux kernel CVE team has assigned CVE-2022-49725 to this issue.


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

	Issue introduced in 4.2 with commit e17bc411aea8fbebc51857037f104ab09f765120 and fixed in 4.14.285 with commit 5ba9956ca57e361fb13ea369bb753eb33177acc7
	Issue introduced in 4.2 with commit e17bc411aea8fbebc51857037f104ab09f765120 and fixed in 4.19.249 with commit 15950157e2c24865b696db1c9ccc72743ae0e967
	Issue introduced in 4.2 with commit e17bc411aea8fbebc51857037f104ab09f765120 and fixed in 5.4.200 with commit ff6e03fe84bc917bb0c907d02de668c2fe101712
	Issue introduced in 4.2 with commit e17bc411aea8fbebc51857037f104ab09f765120 and fixed in 5.10.124 with commit 814092927a215f5ca6c08249ec72a205e0b473cd
	Issue introduced in 4.2 with commit e17bc411aea8fbebc51857037f104ab09f765120 and fixed in 5.15.49 with commit 0a4e5a3dc5e41212870e6043895ae02455c93f63
	Issue introduced in 4.2 with commit e17bc411aea8fbebc51857037f104ab09f765120 and fixed in 5.18.6 with commit 322271351b0e41565171e4cce70ea41854fac115
	Issue introduced in 4.2 with commit e17bc411aea8fbebc51857037f104ab09f765120 and fixed in 5.19 with commit fd5855e6b1358e816710afee68a1d2bc685176ca

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-2022-49725
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/intel/i40e/i40e_ethtool.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/5ba9956ca57e361fb13ea369bb753eb33177acc7
	https://git.kernel.org/stable/c/15950157e2c24865b696db1c9ccc72743ae0e967
	https://git.kernel.org/stable/c/ff6e03fe84bc917bb0c907d02de668c2fe101712
	https://git.kernel.org/stable/c/814092927a215f5ca6c08249ec72a205e0b473cd
	https://git.kernel.org/stable/c/0a4e5a3dc5e41212870e6043895ae02455c93f63
	https://git.kernel.org/stable/c/322271351b0e41565171e4cce70ea41854fac115
	https://git.kernel.org/stable/c/fd5855e6b1358e816710afee68a1d2bc685176ca