mm/page_alloc: clear page->private in free_pages_prepare() — CVE-2026-43303

Summary

CVE-2026-43303 is a advisory from MSRC. mm/page_alloc: clear page->private in free_pages_prepare() Vendor: Microsoft. Severity/Threat: high. Source updated on 2026-05-11.

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Related advisories