netfilter: nf_tables: release flowtable after rcu grace period on error — CVE-2026-23392

Summary

CVE-2026-23392 is a advisory from MSRC. netfilter: nf_tables: release flowtable after rcu grace period on error Vendor: Microsoft. Severity/Threat: high. Source updated on 2026-04-13.

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

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