CVE-2026-46164 | Linux Kernel up to 6.6.140/6.12.89/6.18.31/7.0.6 btrfs create_space_info_sub_group double free
A vulnerability described as critical has been identified in Linux Kernel up to 6.6.140/6.12.89/6.18.31/7.0.6. Affected by this issue is the function create_space_info_sub_group of the component btrfs. Such manipulation leads to double free.
This vulnerability is documented as CVE-2026-46164. The attack requires being on the local network. There is not any exploit available.
Upgrading the affected component is recommended.