CVE-2026-46292

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> pmdomain: core: Fix detach procedure for virtual devices in genpd<br /> <br /> If a device is attached to a PM domain through genpd_dev_pm_attach_by_id(),<br /> genpd calls pm_runtime_enable() for the corresponding virtual device that<br /> it registers. While this avoids boilerplate code in drivers, there is no<br /> corresponding call to pm_runtime_disable() in genpd_dev_pm_detach().<br /> <br /> This means these virtual devices are typically detached from its genpd,<br /> while runtime PM remains enabled for them, which is not how things are<br /> designed to work. In worst cases it may lead to critical errors, like a<br /> NULL pointer dereference bug in genpd_runtime_suspend(), which was recently<br /> reported. For another case, we may end up keeping an unnecessary vote for a<br /> performance state for the device.<br /> <br /> To fix these problems, let&amp;#39;s add this missing call to pm_runtime_disable()<br /> in genpd_dev_pm_detach().