CVE-2026-74274
kernel: cxl/region: Fill first free targets[] slot during auto-discovery
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 15, 2026
Updated · August 21, 2026
Description
A flaw was found in the Linux kernel's CXL (Compute Express Link) driver. When endpoint decoders are removed from a CXL region's target array, the driver can fail to properly fill the resulting NULL pointer holes. This can lead to the system attempting to access a NULL pointer, causing a general protection fault and a system crash. This vulnerability could result in a Denial of Service (DoS).
CVSS score applicability
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.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference