Android Kernel Privilege Escalation Vulnerability in ARM SMMU Driver

A privilege escalation vulnerability has been identified in the Android kernel's ARM SMMU v3 driver, specifically within the 'smmu_detach_dev' function. This vulnerability arises from a use-after-free error, which creates a potential for an out-of-bounds write. Exploitation of this issue requires System execution privileges, but does not need any user interaction.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing a user to gain elevated rights or access within the system.

Remediation

Users can refer to the Android Security Bulletin for March 2026 for guidance on addressing this vulnerability.