CVE-2026-58747 [MEDIUM] – In smmu_detach_dev of arm-smmu-v3.c, there is a possible permission bypass due to a logic

In smmu_detach_dev of arm-smmu-v3.c, there is a possible permission bypass due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.