In multiple functions of hppsfilter.c, there is a possible out-of-bounds write due to a stack buffer overflow.

Summary

In multiple functions of hppsfilter.c, there is a possible out-of-bounds write due to a stack buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Remediation

1. Inventory every Google Android deployment, including staging.
2. No fixed version appears in the public sources yet. Check the references below and the vendor directly.

References

• Referencehttps://source.android.com/docs/security/bulletin/2026/2026-11-01