CVE-2026-31527

medium

Description

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]

References

https://git.kernel.org/stable/c/edee7ee5a14c3b33f6d54641f5af5c5e9180992d

https://git.kernel.org/stable/c/9a6086d2a828dd2ff74cf9abcae456670febd71f

https://git.kernel.org/stable/c/7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1

https://git.kernel.org/stable/c/2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d

Details

Source: Mitre, NVD

Published: 2026-04-22

Updated: 2026-04-23

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00018