7.8

CVE-2026-31527

driver core: platform: use generic driver_override infrastructure

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]
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.17 < 6.12.80
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.21
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.11
Linux ≫ Linux Kernel Version7.0 Updaterc1
Linux ≫ Linux Kernel Version7.0 Updaterc2
Linux ≫ Linux Kernel Version7.0 Updaterc3
Linux ≫ Linux Kernel Version7.0 Updaterc4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.028
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d
Patch
https://git.kernel.org/stable/c/7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1
Patch
https://git.kernel.org/stable/c/9a6086d2a828dd2ff74cf9abcae456670febd71f
Patch
https://git.kernel.org/stable/c/edee7ee5a14c3b33f6d54641f5af5c5e9180992d
Patch
https://git.kernel.org/stable/c/492349e5e4a369a8b62781100a3ade470bf1ce6b