In kvm_iommu_map_sg of iommu.c, there is a possible use after free due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
https://source.android.com/docs/security/bulletin/2026/2026-09-01
https://android.googlesource.com/kernel/common/+/ad34d15396568919a8ddd306ce2120e76d111b7c