CVE-2025-21815

A flaw was found in the memory management subsystem in the Linux kernel. An integer overflow in a shift operation can cause unexpected behavior in memory management, resulting in system instability and a denial of service.

The Linux kernel as shipped in Red Hat Enterprise Linux 6, 7, 8 and 9 is not affected by this vulnerability because the vulnerable code was introduced in a newer version of the Linux kernel.

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.