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CVE-2026-90271NVD
Vulnerability Summary
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.
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.
Affected & Patched Versions
- Linux Linux >= f04046f2577a5c76167333ca99d3903ee5331ba0 and < a29044c9c83513c7463de2adb84c169685562ad2
- Linux Linux >= f04046f2577a5c76167333ca99d3903ee5331ba0 and < fc996c39689bb15aa80e5366809434f7258fb703
- Linux Linux >= 6.19
- Linux Linux a29044c9c83513c7463de2adb84c169685562ad2
- Linux Linux fc996c39689bb15aa80e5366809434f7258fb703