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Merge "cpufreq: schedutil: Fix UAF issue"

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This commit is contained in:
qctecmdr 2023-06-05 11:17:45 -07:00 • committed by Gerrit - the friendly Code Review server
commit bf7d133819
1 changed files with 5 additions and 3 deletions
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8
kernel/sched/cpufreq_schedutil.c
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@ -1296,12 +1296,14 @@ static void sugov_exit(struct cpufreq_policy *policy)
mutex_lock(&global_tunables_lock);
/* Save tunables before last owner release it in gov_attr_set_put() */
if (tunables->attr_set.usage_count == 1)
sugov_tunables_save(policy, tunables);
count = gov_attr_set_put(&tunables->attr_set, &sg_policy->tunables_hook);
policy->governor_data = NULL;
if (!count) {
sugov_tunables_save(policy, tunables);
if (!count)
sugov_clear_global_tunables();
}
mutex_unlock(&global_tunables_lock);