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

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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.

Source published

17 Sep 2026 16:08:05 UTC

Source modified

19 Oct 2026 09:00:48 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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