CVE-2026-72104

A flaw was found in the Linux kernel's device-mapper pcache target. A local user could trigger a system crash by providing a malformed table to the pcache target. This occurs because the system attempts to process an option without a value, leading to a critical error. The primary impact is a Denial of Service (DoS), which could make the system unavailable.

This vulnerability is evaluated as having a Low severity impact because triggering the condition requires local privileges to load device-mapper tables and is restricted to denial of service without compromising confidentiality or integrity. Furthermore, the dm-pcache device-mapper target is absent from supported Red Hat Enterprise Linux kernels. Consequently, Red Hat enterprise products do not contain the vulnerable code and are not affected.

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.