blob: c0bc904d1b22360fd378972d52eb696f8266e9a0 [file] [log] [blame]
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-2024-36970: wifi: iwlwifi: Use request_module_nowait
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: Use request_module_nowait
This appears to work around a deadlock regression that came in
with the LED merge in 6.9.
The deadlock happens on my system with 24 iwlwifi radios, so maybe
it something like all worker threads are busy and some work that needs
to complete cannot complete.
[also remove unnecessary "load_module" var and now-wrong comment]
The Linux kernel CVE team has assigned CVE-2024-36970 to this issue.
Affected and fixed versions
===========================
Issue introduced in 6.9 with commit f5c31bcf604db54470868f3118a60dc4a9ba8813 and fixed in 6.9.2 with commit d20013259539e2fde2deeac85354851097afdf9e
Issue introduced in 6.9 with commit f5c31bcf604db54470868f3118a60dc4a9ba8813 and fixed in 6.10 with commit 3d913719df14c28c4d3819e7e6d150760222bda4
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-2024-36970
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/wireless/intel/iwlwifi/iwl-drv.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/d20013259539e2fde2deeac85354851097afdf9e
https://git.kernel.org/stable/c/3d913719df14c28c4d3819e7e6d150760222bda4