In multiple functions of iommu.c, there is a possible out of bounds read/write due to improper input validation. 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/+/ba7833622fc3581c388d0da922aaab529aec43b3
https://android.googlesource.com/kernel/common/+/6bc773e9c9f8ec6c5c431934462badbbb7d21767