CVE-2026-53284

A flaw was found in the Linux kernel's Btrfs filesystem. A local user performing specific filesystem operations could trigger an error during the writing of dirty extent buffers. This improper handling of the dirty pages I/O tree can prevent unsubmitted records from being cleaned up, leading to warnings and potentially forcing the filesystem into a read-only state. This issue could result in a denial of service (DoS), making the filesystem unresponsive or inaccessible for writes.

This vulnerability is rated as Low severity because triggering it requires local access, specific filesystem stress under write failure conditions, and is confined to systems utilizing the Btrfs filesystem. Btrfs is not the default filesystem in Red Hat Enterprise Linux and is not supported across enterprise deployments, severely limiting the potential attack surface. Consequently, typical production installations running standard storage configurations are unaffected by this denial-of-service condition.

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.