CVE-2026-53120

Summary

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

PCI: 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]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux782a985d7af26db39e86070d28f987cad21313c0 < dfe950d9464cad609f3b118c6203e2708055bc61affected
LinuxLinux782a985d7af26db39e86070d28f987cad21313c0 < 58a42be0d70307d765594fc581f5f5e5ef059712affected
LinuxLinux782a985d7af26db39e86070d28f987cad21313c0 < c5b2c5755495507e14f310c2653c85de0a309b1faffected
LinuxLinux782a985d7af26db39e86070d28f987cad21313c0 < 10a4206a24013be4d558d476010cbf2eb4c9fa64affected
LinuxLinux3.16affected
LinuxLinux0 < 3.16unaffected
LinuxLinux6.12.91 <= 6.12.*unaffected
LinuxLinux6.18.33 <= 6.18.*unaffected
LinuxLinux7.0.10 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References