netfilter: nf_tables: fix use-after-free in nf_tables_addchain()
CVE-2026-23231
Scope
What the vendor says is affected
- cbl2 reaper 3.1.1-22 on CBL Mariner 2.0
- azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0
Timeline
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