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8.4
KVM on ARM64: Unvalidated Input Allows Privilege Escalation
CVE-2025-36920
Summary
A security issue in the ARM64 version of KVM (Kernel-based Virtual Machine) allows an attacker to gain elevated privileges on a system without needing to perform any additional actions. This is because the system does not properly check some inputs, which could lead to unintended changes to the system. To protect your system, update to the latest version of KVM.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| android | All versions | – |
Original title
In hyp_alloc of arch/arm64/kvm/hyp/nvhe/alloc.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execut...
Original description
In hyp_alloc of arch/arm64/kvm/hyp/nvhe/alloc.c, there is a possible out of bounds 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.
Vulnerability type
CWE-20
Improper Input Validation
CWE-787
Out-of-bounds Write
Published: 10 Mar 2026 · Updated: 14 Mar 2026 · First seen: 10 Mar 2026