DEBIAN-CVE-2026-23258
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
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | linux | 5.10.178-1, 5.10.120-1, 5.10.92-2 |
| Debian:14 | linux | 6.13.7-1, 6.13.8-1, 6.13.9-1 |
| Debian:13 | linux | 6.12.57-1~bpo12+1, 6.12.63-1, 6.12.63-1~bpo12+1 |
| Debian:12 | linux | *, 6.1.159-1, 6.1.99-1 |
Exploit Intelligence
- 4081.3.7.yml (github-poc)
Timeline
- Mar 18, 2026 CVE Published
- Apr 28, 2026 CVE Updated