CVE-2025-38602

In the Linux kernel, the following vulnerability has been resolved:

iwlwifi: Add missing check for alloc_ordered_workqueue

Add check for the return value of alloc_ordered_workqueue since it may return NULL pointer.

In iwlwifi (DVM), the return value of alloc_ordered_workqueue() wasn’t checked; under memory pressure it can return NULL, and subsequent use causes a kernel NULL dereference during driver init. Exploitation requires the driver to be loaded (typically root/boot-time), so this is a local 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.

To mitigate this issue, prevent modules iwlcore, iwlwifi from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.