Vulnerability 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]
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.17, < 6.12.80 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/2b38efc05bf7a8568ec74bfffea0f5cfa62bc01dPatch
- https://git.kernel.org/stable/c/7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1Patch
- https://git.kernel.org/stable/c/9a6086d2a828dd2ff74cf9abcae456670febd71fPatch
- https://git.kernel.org/stable/c/edee7ee5a14c3b33f6d54641f5af5c5e9180992dPatch
FAQ
What is CVE-2026-31527?
CVE-2026-31527 is a vulnerability with a CVSS score of 7.8 (HIGH). 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' matc...
How severe is CVE-2026-31527?
CVE-2026-31527 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31527?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.