cve/published/2023/CVE-2023-53010.mbox

From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: <linux-cve-announce@vger.kernel.org>
Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org>
Subject: CVE-2023-53010: bnxt: Do not read past the end of test names

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

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

bnxt: Do not read past the end of test names

Test names were being concatenated based on a offset beyond the end of
the first name, which tripped the buffer overflow detection logic:

 detected buffer overflow in strnlen
 [...]
 Call Trace:
 bnxt_ethtool_init.cold+0x18/0x18

Refactor struct hwrm_selftest_qlist_output to use an actual array,
and adjust the concatenation to use snprintf() rather than a series of
strncat() calls.

The Linux kernel CVE team has assigned CVE-2023-53010 to this issue.


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

	Issue introduced in 4.12 with commit eb51365846bc418687af4c4f41b68b6e84cdd449 and fixed in 6.1.9 with commit cefa85480ac99c0bef5a09daadb48d65fc28e279
	Issue introduced in 4.12 with commit eb51365846bc418687af4c4f41b68b6e84cdd449 and fixed in 6.2 with commit d3e599c090fc6977331150c5f0a69ab8ce87da21

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-2023-53010
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/broadcom/bnxt/bnxt_ethtool.c
	drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.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/cefa85480ac99c0bef5a09daadb48d65fc28e279
	https://git.kernel.org/stable/c/d3e599c090fc6977331150c5f0a69ab8ce87da21