CVE-2026-31646

About vulnerability

In the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() page_pool_create() can return an ERR_PTR on failure. The return value is used unconditionally in the loop that follows, passing the error pointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(), which dereferences it, causing a kernel oops. Add an IS_ERR check after page_pool_create() to return early on failure. A flaw was found in the Linux kernel’s lan966x network driver. An error in handling the return value from the page_pool_create() function can lead to the use of an invalid memory pointer. This improper error handling can cause a kernel oops, resulting in a Denial of Service (DoS) for the affected system.

Live-patch status from KernelCare for each operating system.