CVE-2026-23258 (GCVE-0-2026-23258)

Vulnerability from cvelistv5 – Published: 2026-03-18 17:41 – Updated: 2026-05-11 22:03
VLAI
Title
net: liquidio: Initialize netdev pointer before queue setup
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c33c997346c34ea7b89aec99524ad9632a2f1e0c , < be109646cdaecab262f6276303b1763468c94378 (git)
Affected: c33c997346c34ea7b89aec99524ad9632a2f1e0c , < c81a8515fb8c8fb5d0dbc21f48337494bf1d60df (git)
Affected: c33c997346c34ea7b89aec99524ad9632a2f1e0c , < a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4 (git)
Affected: c33c997346c34ea7b89aec99524ad9632a2f1e0c , < c0ed6c77ec34050971fd0df2a94dfdea66d09331 (git)
Affected: c33c997346c34ea7b89aec99524ad9632a2f1e0c , < 1d4590fde856cb94bd9a46e795c29d8288c238fc (git)
Affected: c33c997346c34ea7b89aec99524ad9632a2f1e0c , < d028147ae06407cb355245db1774793600670169 (git)
Affected: c33c997346c34ea7b89aec99524ad9632a2f1e0c , < 926ede0c85e1e57c97d64d9612455267d597bb2c (git)
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Linux Linux Affected: 4.18
Unaffected: 0 , < 4.18 (semver)
Unaffected: 5.10.250 , ≤ 5.10.* (semver)
Unaffected: 5.15.200 , ≤ 5.15.* (semver)
Unaffected: 6.1.163 , ≤ 6.1.* (semver)
Unaffected: 6.6.124 , ≤ 6.6.* (semver)
Unaffected: 6.12.70 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
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      "current_release_date": "2026-06-28T07:19:46+00:00",
      "cve": "CVE-2026-23258",
      "id": "CVE-2026-23258",
      "initial_release_date": "2026-03-18T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: liquidio: Initialize netdev pointer before queue setup",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23258.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-05-26T01:53:55Z",
      "cve": "CVE-2026-23258",
      "id": "CVE-2026-23258",
      "initial_release_date": "2026-03-19T00:27:00Z",
      "product_status:known_affected": "137",
      "product_status:known_not_affected": "20",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23258",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23258.json",
      "version": "6"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.