netfilter: nf_tables: fix use-after-free in nf_tables_addchain()
CVE-2026-23231
Scope
What the vendor says is affected
- azl3 frr 10.5.0-1 on Azure Linux 3.0
- cbl2 frr 8.5.5-5 on CBL Mariner 2.0
- cbl2 frr 8.5.5-5 on CBL-Mariner 2.0
- azl3 frr 10.5.0-2 on Azure Linux 3.0
- azl3 frr 10.5.0-3 on Azure Linux 3.0
Versions the vendor lists as fixed
- 10.5.0-2
- 8.5.5-6
Next step
What the vendor recommends
CBL-Mariner Releases Release Notes
Review the complete instructions on the vendor's siteTimeline
When this advisory changed
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Updated by Microsoft Security Response Center
The vendor changed the advisory after it was first published.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.
Vulnerabilities