[6.6,0/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value

Message ID	20241106182000.40167-1-abelova@astralinux.ru
Headers	show Received: from mail-gw02.astralinux.ru (mail-gw02.astralinux.ru [195.16.41.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 22267537FF; Wed, 6 Nov 2024 18:20:06 +0000 (UTC) From: Anastasia Belova <abelova@astralinux.ru> To: stable@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Anastasia Belova <abelova@astralinux.ru>, lvc-project@linuxtesting.org, Huang Rui <ray.huang@amd.com>, "Rafael J. Wysocki" <rafael@kernel.org>, Viresh Kumar <viresh.kumar@linaro.org>, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 6.6 0/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value Date: Wed, 6 Nov 2024 21:19:57 +0300 Message-ID: <20241106182000.40167-1-abelova@astralinux.ru> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit FromAlignment: s X-KSMG-AntiSpam-Interceptor-Info: scan successful bases: 2024/11/06 15:41:00 #26827080
Series	cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value \| expand [6.6,0/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value [6.6,1/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value

Message ID

20241106182000.40167-1-abelova@astralinux.ru

Headers

From: Anastasia Belova <abelova@astralinux.ru>
To: stable@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Anastasia Belova <abelova@astralinux.ru>,
	lvc-project@linuxtesting.org,
	Huang Rui <ray.huang@amd.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 6.6 0/1] cpufreq: amd-pstate: add check for cpufreq_cpu_get's
 return value
Date: Wed,  6 Nov 2024 21:19:57 +0300
Message-ID: <20241106182000.40167-1-abelova@astralinux.ru>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

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cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value | expand

Message

Anastasia Belova Nov. 6, 2024, 6:19 p.m. UTC

NULL-dereference is possible in amd_pstate_adjust_perf in 6.6 stable
release.

The problem has been fixed by the following upstream patch that was adapted
to 6.6. The patch couldn't be applied clearly but the changes made are 
minor.

Found by Linux Verification Center (linuxtesting.org) with SVACE.