CVE-2026-23258
Vulnerability Scoring
Analysis In Progress
CVE-2026-23258 Vulnerability Analysis & Exploit Details
CVE-2026-23258
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2026-23258 Details
Status: Awaiting Analysis
Last updated: 🕐 19 Mar 2026, 13:25 UTC
Originally published on: 🕕 18 Mar 2026, 18:16 UTC
CVSS Release:
CVE-2026-23258 Vulnerability Summary
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.
Assessing the Risk of CVE-2026-23258
Access Complexity Graph
The exploitability of CVE-2026-23258 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2026-23258
No exploitability data is available for CVE-2026-23258.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2026-23258, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2026-23258, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2026-23258 does not compromise confidentiality.
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Integrity:
None
CVE-2026-23258 does not impact data integrity.
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Availability:
None
CVE-2026-23258 does not affect system availability.
CVE-2026-23258 References
External References
- https://git.kernel.org/stable/c/1d4590fde856cb94bd9a46e795c29d8288c238fc
- https://git.kernel.org/stable/c/926ede0c85e1e57c97d64d9612455267d597bb2c
- https://git.kernel.org/stable/c/a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4
- https://git.kernel.org/stable/c/be109646cdaecab262f6276303b1763468c94378
- https://git.kernel.org/stable/c/c0ed6c77ec34050971fd0df2a94dfdea66d09331
- https://git.kernel.org/stable/c/c81a8515fb8c8fb5d0dbc21f48337494bf1d60df
- https://git.kernel.org/stable/c/d028147ae06407cb355245db1774793600670169
CWE Common Weakness Enumeration
Unknown
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