CVE-2026-90271

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.

• https://git.kernel.org/stable/c/a29044c9c83513c7463de2adb84c169685562ad2
• https://git.kernel.org/stable/c/fc996c39689bb15aa80e5366809434f7258fb703