linux-cve-announce - CVE-2024-57936: RDMA/bnxt_re: Fix max SGEs for the Work Request

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2025012149-CVE-2024-57936-03a6@gregkh>
Date: Tue, 21 Jan 2025 13:01:50 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-57936: RDMA/bnxt_re: Fix max SGEs for the Work Request

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

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

RDMA/bnxt_re: Fix max SGEs for the Work Request

Gen P7 supports up to 13 SGEs for now. WQE software structure
can hold only 6 now. Since the max send sge is reported as
13, the stack can give requests up to 13 SGEs. This is causing
traffic failures and system crashes.

Use the define for max SGE supported for variable size. This
will work for both static and variable WQEs.

The Linux kernel CVE team has assigned CVE-2024-57936 to this issue.


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

	Issue introduced in 6.12 with commit 227f51743b61fe3f6fc481f0fb8086bf8c49b8c9 and fixed in 6.12.9 with commit 9a479088e0c8f6140b8c7752b563bc8c6c6dcc8c
	Issue introduced in 6.12 with commit 227f51743b61fe3f6fc481f0fb8086bf8c49b8c9 and fixed in 6.13 with commit 79d330fbdffd8cee06d8bdf38d82cb62d8363a27

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-2024-57936
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/qplib_fp.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/3de1b50f055dc2ca7072a526cdda21f691c22dd9
	https://git.kernel.org/stable/c/9a479088e0c8f6140b8c7752b563bc8c6c6dcc8c
	https://git.kernel.org/stable/c/79d330fbdffd8cee06d8bdf38d82cb62d8363a27