From: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Date: Mon, 27 Jul 2026 09:35:51 +0000 (+0530)
Subject: cpufreq: powernow-k8: Fix possible memory leak in powernowk8_cpu_init()
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=d5f8e5f6040d052d44fcbf4f31dd35145c0c8d7d;p=thirdparty%2Fkernel%2Flinux.git

cpufreq: powernow-k8: Fix possible memory leak in powernowk8_cpu_init()

The memory allocated for data->powernow_table inside
powernow_k8_cpu_init_acpi() or find_psb_table() is not freed in one of
the error paths in powernowk8_cpu_init(). Fix that by adding a kfree().

Fixes: 1ff6e97f1d99 ("[CPUFREQ] cpumask: avoid playing with cpus_allowed in powernow-k8.c")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
Link: https://patch.msgid.link/20260727093553.98246-1-nihaal@cse.iitm.ac.in
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 2b791f1ec51b..909a3f0598a9 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1084,6 +1084,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 
 err_out_exit_acpi:
 	powernow_k8_cpu_exit_acpi(data);
+	kfree(data->powernow_table);
 
 err_out:
 	kfree(data);