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().
Does this matter?
Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.11% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1d4590fde856cb94bd9a46e795c29d8288c238fcPatch
- https://git.kernel.org/stable/c/926ede0c85e1e57c97d64d9612455267d597bb2cPatch
- https://git.kernel.org/stable/c/a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4Patch
- https://git.kernel.org/stable/c/be109646cdaecab262f6276303b1763468c94378Patch
- https://git.kernel.org/stable/c/c0ed6c77ec34050971fd0df2a94dfdea66d09331Patch
- https://git.kernel.org/stable/c/c81a8515fb8c8fb5d0dbc21f48337494bf1d60dfPatch
- https://git.kernel.org/stable/c/d028147ae06407cb355245db1774793600670169Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.