Riskcovery

CVE-2026-90271

arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 19, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt

If a user unbinds an MSC after mpam_disable() has been run in response to an error interrupt then a dereference of a NULL pointer occurs as mpam_disable() sets the drvdata to NULL. Add an early return to the driver remove callback to avoid this.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • f04046f2577a5c76167333ca99d3903ee5331ba0 to before a29044c9c83513c7463de2adb84c169685562ad2Affected
  • f04046f2577a5c76167333ca99d3903ee5331ba0 to before fc996c39689bb15aa80e5366809434f7258fb703Affected
LinuxLinux
  • 6.19Affected
  • before 6.19Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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