Vulnerability-Lookup

GHSA-QV92-HWC3-CHXF

Vulnerability from github – Published: 2026-03-18 18:31 – Updated: 2026-03-18 18:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23258"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-18T18:16:24Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: liquidio: Initialize netdev pointer before queue setup\n\nIn setup_nic_devices(), the netdev is allocated using alloc_etherdev_mq().\nHowever, the pointer to this structure is stored in oct-\u003eprops[i].netdev\nonly after the calls to netif_set_real_num_rx_queues() and\nnetif_set_real_num_tx_queues().\n\nIf either of these functions fails, setup_nic_devices() returns an error\nwithout freeing the allocated netdev. Since oct-\u003eprops[i].netdev is still\nNULL at this point, the cleanup function liquidio_destroy_nic_device()\nwill fail to find and free the netdev, resulting in a memory leak.\n\nFix this by initializing oct-\u003eprops[i].netdev before calling the queue\nsetup functions. This ensures that the netdev is properly accessible for\ncleanup in case of errors.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.",
  "id": "GHSA-qv92-hwc3-chxf",
  "modified": "2026-03-18T18:31:18Z",
  "published": "2026-03-18T18:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23258"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d4590fde856cb94bd9a46e795c29d8288c238fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/926ede0c85e1e57c97d64d9612455267d597bb2c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be109646cdaecab262f6276303b1763468c94378"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0ed6c77ec34050971fd0df2a94dfdea66d09331"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c81a8515fb8c8fb5d0dbc21f48337494bf1d60df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d028147ae06407cb355245db1774793600670169"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-03-18 17:41 – Updated: 2026-03-18 17:41

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 ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/be109646cdaecab26…
	https://git.kernel.org/stable/c/c81a8515fb8c8fb5d…
	https://git.kernel.org/stable/c/a0e57c0b68c9e6f9a…
	https://git.kernel.org/stable/c/c0ed6c77ec3405097…
	https://git.kernel.org/stable/c/1d4590fde856cb94b…
	https://git.kernel.org/stable/c/d028147ae06407cb3…
	https://git.kernel.org/stable/c/926ede0c85e1e57c9…

Impacted products

Vendor

Product

Version

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)

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)

Show details on NVD website

JSON

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              "status": "unaffected",
              "version": "6.1.163",
              "versionType": "semver"
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              "version": "6.6.124",
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              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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        }
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      "title": "net: liquidio: Initialize netdev pointer before queue setup",
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    "datePublished": "2026-03-18T17:41:05.080Z",
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-QV92-HWC3-CHXF

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

Tags

Sightings

Nomenclature