In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Add missing NULL check for alloc_workqueue() alloc_workqueue() can return NULL on memory allocation failure. Without proper error checking, this may lead to a NULL pointer dereference when queue_work() is later called with the NULL workqueue pointer in epf_ntb_epc_init(). Add a NULL check immediately after alloc_workqueue() and return -ENOMEM on failure to prevent the driver from loading with an invalid workqueue pointer.

A flaw was found in the Linux kernel's PCI endpoint driver. A missing NULL check for the `alloc_workqueue()` function can lead to a NULL pointer dereference if memory allocation fails. This vulnerability, specifically within the `epf_ntb_epc_init()` function, allows a local attacker to cause a system crash, resulting in a Denial of Service (DoS).

Red Hat Enterprise Linux 10 Affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2025-71313 https://nvd.nist.gov/vuln/detail/CVE-2025-71313 https://lore.kernel.org/linux-cve-announce/2026060332-CVE-2025-71313-bb96@gregkh/T