CVE-2026-90280

Summary

In the Linux kernel, the following vulnerability has been resolved:

phy: qcom: qmp-usb: Fix possible NULL-deref on early runtime suspend

There is a small window where the runtime suspend callback may run after pm_runtime_enable() and before pm_runtime_forbid(). In this case, a crash occurs because runtime suspend/resume dereferences qmp->phy pointer, which is not yet initialized: if (!qmp->phy->init_count) {

This can also happen if user re-enables runtime-pm via the sysfs attribute before qmp phy is initialized.

Similarly to other qcom phy drivers, introduce a qmp->phy_initialized variable that can be used to avoid relying on the possibly uninitialized phy pointer.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe464a3180a43b6596bd267f9f274e1793bfb8150 < 9b28287c5dea7650e6dd317591b9e82b6e145365affected
LinuxLinuxe464a3180a43b6596bd267f9f274e1793bfb8150 < f4e39ab1b2009a89c60e4cb9dbefb8140d405effaffected
LinuxLinuxe464a3180a43b6596bd267f9f274e1793bfb8150 < 5547fd950d6bf72de861b6934341e7bb0888640caffected
LinuxLinuxe464a3180a43b6596bd267f9f274e1793bfb8150 < 03455404fb6cbfd65842695df26739853fc1516baffected
LinuxLinuxe464a3180a43b6596bd267f9f274e1793bfb8150 < 142c5593379273264474f31d5956b1a0065cd576affected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References