linux-cve-announce - CVE-2023-53657: ice: Don't tx before switchdev is fully configured

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Message-ID: <2025100701-CVE-2023-53657-d0c7@gregkh>
Date: Tue,  7 Oct 2025 17:21:16 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53657: ice: Don't tx before switchdev is fully configured

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

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

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

ice: Don't tx before switchdev is fully configured

There is possibility that ice_eswitch_port_start_xmit might be
called while some resources are still not allocated which might
cause NULL pointer dereference. Fix this by checking if switchdev
configuration was finished.

The Linux kernel CVE team has assigned CVE-2023-53657 to this issue.


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

	Fixed in 6.1.55 with commit 5760a72b3060150b587eff3e879648c7470efddd
	Fixed in 6.5.5 with commit 63ff5a94649837d980e3b9ef535c793ec8cb0ca7
	Fixed in 6.6 with commit 7aa529a69e92b9aff585e569d5003f7c15d8d60b

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-2023-53657
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/ice/ice_eswitch.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/5760a72b3060150b587eff3e879648c7470efddd
	https://git.kernel.org/stable/c/63ff5a94649837d980e3b9ef535c793ec8cb0ca7
	https://git.kernel.org/stable/c/7aa529a69e92b9aff585e569d5003f7c15d8d60b