IT

Tracker / CVE-2026-23258

CVE-2026-23258

Medium 5.5

In the Linux kernel, the following vulnerability has been resolved: net: liquidio: Initialize netdev pointer before queue setup In setup_nic_devices(), the netdev is allocated using alloc_etherdev_mq(). However, the pointer to this structure is stored in oct->props[i].netdev only after the calls to netif_set_real_num_rx_queues() and netif_set_real_num_tx_queues(). If either of these functions fails, setup_nic_devices() returns an error without freeing the allocated netdev. Since oct->props[i].netdev is still NULL at this point, the cleanup function liquidio_destroy_nic_device() will fail to find and free the netdev, resulting in a memory leak. Fix this by initializing oct->props[i].netdev before calling the queue setup functions. This ensures that the netdev is properly accessible for cleanup in case of errors. Compile tested only. Issue found using a prototype static analysis tool and code review.

Affected products and versions

linux linux_kernel
linux linux_kernel · 4.18 → 5.10.250
linux linux_kernel · 5.11 → 5.15.200
linux linux_kernel · 5.16 → 6.1.163
linux linux_kernel · 6.13 → 6.18.10
linux linux_kernel · 6.2 → 6.6.124
linux linux_kernel · 6.7 → 6.12.70

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References