CVEvulnerability
CVE-2026-80676
- Status
- Received
- Published
- 2026-08-28
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
Drivers: hv: vmbus: 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/0e2f0833556c8c5269deb457b89d538644a3b747 git.kernel.org
- https://git.kernel.org/stable/c/2fb010ea7ca98cd09a6d365260b769f627e73a76 git.kernel.org
- https://git.kernel.org/stable/c/331d8900121a1d74ecd45cd2db742ddcb5a0a565 git.kernel.org
- https://git.kernel.org/stable/c/a1656234a4a2dc6e975546867887c5f63e4a90f0 git.kernel.org
- https://git.kernel.org/stable/c/d1cb12ae81d2f7a58b0b1cfb51862afca98e6058 git.kernel.org