CVE-2026-23273 | Linux Kernel up to 6.19.3 drivers/net/macvlan.c macvlan_common_newlink use after free (EUVD-2026-13609 / Nessus ID 303222)
A vulnerability was found in Linux Kernel up to 6.19.3. It has been classified as critical. Affected is the function macvlan_common_newlink of the file drivers/net/macvlan.c. This manipulation causes use after free.
This vulnerability is handled as CVE-2026-23273. The attack can only be done within the local network. There is not any exploit available.
Upgrading the affected component is recommended.