cpufreq: apple-soc: Fix null-ptr-deref in apple_soc_cpufreq_get_rate()

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[ Upstream commit 9992649f67 ]

cpufreq_cpu_get_raw() can return NULL when the target CPU is not present
in the policy->cpus mask. apple_soc_cpufreq_get_rate() does not check
for this case, which results in a NULL pointer dereference.

Fixes: 6286bbb405 ("cpufreq: apple-soc: Add new driver to control Apple SoC CPU P-states")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Henry Martin 2025-04-09 20:48:13 +08:00 • committed by Greg Kroah-Hartman

parent 92d55d7051

commit 1053dcf8a5

1 changed files with 8 additions and 2 deletions

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drivers/cpufreq/apple-soc-cpufreq.c

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