Description
In the Linux kernel, the following vulnerability has been resolved:
vdpa: 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]
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 539fec78edb4e084e7c532affc56cc42d4ceea4b, < 4005cb89139f7c9af85046b241dcf3fa2e1b3559; >= 539fec78edb4e084e7c532affc56cc42d4ceea4b, < 4eab1a74a498f0bf19f102f9362e9deef9307aea; >= 539fec78edb4e084e7c532affc56cc42d4ceea4b, < 654ef9c33e138ede6734ac286282df9faf83cd11; >= 539fec78edb4e084e7c532affc56cc42d4ceea4b, < fb5cb4913ce333cc4647722e8c2b8378e12f2464; >= 539fec78edb4e084e7c532affc56cc42d4ceea4b, < 85bb534ff12aab6916058897b39c748940a7a4c6 |
| Linux | Linux | 5.17 |
References
- https://git.kernel.org/stable/c/4005cb89139f7c9af85046b241dcf3fa2e1b3559
- https://git.kernel.org/stable/c/4eab1a74a498f0bf19f102f9362e9deef9307aea
- https://git.kernel.org/stable/c/654ef9c33e138ede6734ac286282df9faf83cd11Patch
- https://git.kernel.org/stable/c/85bb534ff12aab6916058897b39c748940a7a4c6Patch
- https://git.kernel.org/stable/c/fb5cb4913ce333cc4647722e8c2b8378e12f2464Patch
Timeline
- Published
- Jun 24, 2026
- Last modified
- Nov 6, 2026
- NVD status
- Modified