CVE-2026-53126 | Linux Kernel up to 6.6.140/6.12.90/6.18.32/7.0.9 blk-cgroup blkcg_maybe_throttle_current throttle_disk information disclosure (WID-SEC-2026-2077)

A vulnerability was found in . This affects the function blkcg_maybe_throttle_current of the component blk-cgroup. The manipulation of the argument throttle_disk leads to information disclosure.

This vulnerability is traded as CVE-2026-53126. Access to the local network is required for this attack to succeed. There is no exploit available.

Upgrading the affected component is recommended.