NVD Vulnerability Detail
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CVE-2026-31527
Summary

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

driver core: platform: use generic driver_override infrastructure

When a driver is probed through __driver_attach(), the bus' match()
callback is called without the device lock held, thus accessing the
driver_override field without a lock, which can cause a UAF.

Fix this by using the driver-core driver_override infrastructure taking
care of proper locking internally.

Note that calling match() from __driver_attach() without the device lock
held is intentional. [1]

Publication Date April 22, 2026, 11:16 p.m.
Registration Date April 25, 2026, 4:05 a.m.
Last Update April 24, 2026, 1:17 a.m.
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