In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free.

Summary

In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free. 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://android.googlesource.com/kernel/common/+/13beada2dac38c2d7303f1700aa16fb5053b919d
• Referencehttps://android.googlesource.com/kernel/common/+/efe16a3021b9f95eb1cb83e98d0d1db9bff94ce4
• Referencehttps://android.googlesource.com/kernel/common/+/f7d26609785ce56170645d56f306db38e8ba277a
• Referencehttps://android.googlesource.com/kernel/common/+/009c5006c969826d37a2c5fc2721a7bb20d72555
• Referencehttps://source.android.com/docs/security/bulletin/2026/2026-11-01