CVE-2025-40266

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Source
https://cve.org/CVERecord?id=CVE-2025-40266
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40266.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-40266
Downstream
Related
Published
2025-12-04T16:08:25.392Z
Modified
2026-05-15T04:13:48.084640024Z
Summary
KVM: arm64: Check the untrusted offset in FF-A memory share
Details

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: Check the untrusted offset in FF-A memory share

Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value [U32MAX - sizeof(struct ffacompositememregion) + 1, U32_MAX] is set from the host kernel.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40266.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.11.0
Fixed
6.6.118
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.60
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.17.10

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40266.json"