CVE-2026-90183

A flaw was found in the Linux kernel's blk-iolatency controller. This vulnerability occurs when the I/O latency controller incorrectly handles the clearing of delay states for I/O groups, particularly when a group without a specific latency target is throttled. This oversight can lead to a situation where I/O operations for tasks within an affected control group (cgroup) are persistently throttled, significantly degrading system performance and potentially causing a Denial of Service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.