HOMEVULNERABILITIESCVE-2026-23258
NONE

CVE-2026-23258

Published: March 18, 2026· Updated: Mar 19, 2026

EPSS:0.02%probability of exploitation in 30 daysPercentile:6.3th

Official 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.

NVD Source

Technical Analysis

CVE-2026-23258 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

Affected Vendors & Products

Mentioned vendors (from description):
Linux
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

All References (7)

Quick Facts

CVE IDCVE-2026-23258
SeverityNONE
CISA KEVNo
EPSS (30d)0.02%
PublishedMar 18, 2026

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-23258 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.