Riskcovery

CVE-2026-80676

Drivers: hv: vmbus: use generic driver_override infrastructure

State
Published
Severity
Not scored
Published
Aug 28, 2026
Updated
Oct 21, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

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]

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • d765edbb301c0e196015a59b17420558088ea33f to before a1656234a4a2dc6e975546867887c5f63e4a90f0Affected
  • d765edbb301c0e196015a59b17420558088ea33f to before d1cb12ae81d2f7a58b0b1cfb51862afca98e6058Affected
  • d765edbb301c0e196015a59b17420558088ea33f to before 0e2f0833556c8c5269deb457b89d538644a3b747Affected
  • d765edbb301c0e196015a59b17420558088ea33f to before 2fb010ea7ca98cd09a6d365260b769f627e73a76Affected
  • d765edbb301c0e196015a59b17420558088ea33f to before 331d8900121a1d74ecd45cd2db742ddcb5a0a565Affected
LinuxLinux
  • 4.20Affected
  • before 4.20Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.97 through 6.12.*Not affected
  • 6.18.40 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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