linux-cve-announce - CVE-2024-50158: RDMA/bnxt

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Message-ID: <2024110746-CVE-2024-50158-96bf@gregkh>
Date: Thu,  7 Nov 2024 10:34:58 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-50158: RDMA/bnxt_re: Fix out of bound check

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

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

RDMA/bnxt_re: Fix out of bound check

Driver exports pacing stats only on GenP5 and P7 adapters. But while
parsing the pacing stats, driver has a check for "rdev->dbr_pacing".  This
caused a trace when KASAN is enabled.

BUG: KASAN: slab-out-of-bounds in bnxt_re_get_hw_stats+0x2b6a/0x2e00 [bnxt_re]
Write of size 8 at addr ffff8885942a6340 by task modprobe/4809

The Linux kernel CVE team has assigned CVE-2024-50158 to this issue.


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

	Issue introduced in 6.6 with commit 8b6573ff3420 and fixed in 6.6.59 with commit 05c5fcc1869a
	Issue introduced in 6.6 with commit 8b6573ff3420 and fixed in 6.11.6 with commit c11b9b03ea52
	Issue introduced in 6.6 with commit 8b6573ff3420 and fixed in 6.12-rc4 with commit a9e6e7443922

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-2024-50158
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/infiniband/hw/bnxt_re/hw_counters.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/05c5fcc1869a08e36a29691699b6534e5a00a82b
	https://git.kernel.org/stable/c/c11b9b03ea5252898f91f3388c248f0dc47bda52
	https://git.kernel.org/stable/c/a9e6e7443922ac0a48243c35d03834c96926bff1