Vulnerability-Lookup

GHSA-J2H6-X5FV-586Q

Vulnerability from github – Published: 2026-02-14 15:32 – Updated: 2026-03-18 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

igc: Reduce TSN TX packet buffer from 7KB to 5KB per queue

The previous 7 KB per queue caused TX unit hangs under heavy timestamping load. Reducing to 5 KB avoids these hangs and matches the TSN recommendation in I225/I226 SW User Manual Section 7.5.4.

The 8 KB "freed" by this change is currently unused. This reduction is not expected to impact throughput, as the i226 is PCIe-limited for small TSN packets rather than TX-buffer-limited.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23122"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T15:16:07Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nigc: Reduce TSN TX packet buffer from 7KB to 5KB per queue\n\nThe previous 7 KB per queue caused TX unit hangs under heavy\ntimestamping load. Reducing to 5 KB avoids these hangs and matches\nthe TSN recommendation in I225/I226 SW User Manual Section 7.5.4.\n\nThe 8 KB \"freed\" by this change is currently unused. This reduction\nis not expected to impact throughput, as the i226 is PCIe-limited\nfor small TSN packets rather than TX-buffer-limited.",
  "id": "GHSA-j2h6-x5fv-586q",
  "modified": "2026-03-18T15:30:40Z",
  "published": "2026-02-14T15:32:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23122"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88037973c8ef6032bf84e9955595f8b20bc14c21"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ad1b6c1e63d25f5465b7a8aa403bdcee84b86f9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-23122 (GCVE-0-2026-23122)

Vulnerability from cvelistv5 – Published: 2026-02-14 15:09 – Updated: 2026-05-11 22:00

Title

igc: Reduce TSN TX packet buffer from 7KB to 5KB per queue

Summary

In the Linux kernel, the following vulnerability has been resolved: igc: Reduce TSN TX packet buffer from 7KB to 5KB per queue The previous 7 KB per queue caused TX unit hangs under heavy timestamping load. Reducing to 5 KB avoids these hangs and matches the TSN recommendation in I225/I226 SW User Manual Section 7.5.4. The 8 KB "freed" by this change is currently unused. This reduction is not expected to impact throughput, as the i226 is PCIe-limited for small TSN packets rather than TX-buffer-limited.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/88037973c8ef6032b…
https://git.kernel.org/stable/c/8ad1b6c1e63d25f54…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0d58cdc902dace2298406b3972def04f55e3d775 , < 88037973c8ef6032bf84e9955595f8b20bc14c21 (git) Affected: 0d58cdc902dace2298406b3972def04f55e3d775 , < 8ad1b6c1e63d25f5465b7a8aa403bdcee84b86f9 (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.8 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

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JSON

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  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/igc/igc_defines.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "88037973c8ef6032bf84e9955595f8b20bc14c21",
              "status": "affected",
              "version": "0d58cdc902dace2298406b3972def04f55e3d775",
              "versionType": "git"
            },
            {
              "lessThan": "8ad1b6c1e63d25f5465b7a8aa403bdcee84b86f9",
              "status": "affected",
              "version": "0d58cdc902dace2298406b3972def04f55e3d775",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/igc/igc_defines.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.8",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nigc: Reduce TSN TX packet buffer from 7KB to 5KB per queue\n\nThe previous 7 KB per queue caused TX unit hangs under heavy\ntimestamping load. Reducing to 5 KB avoids these hangs and matches\nthe TSN recommendation in I225/I226 SW User Manual Section 7.5.4.\n\nThe 8 KB \"freed\" by this change is currently unused. This reduction\nis not expected to impact throughput, as the i226 is PCIe-limited\nfor small TSN packets rather than TX-buffer-limited."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:00:33.309Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/88037973c8ef6032bf84e9955595f8b20bc14c21"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ad1b6c1e63d25f5465b7a8aa403bdcee84b86f9"
        }
      ],
      "title": "igc: Reduce TSN TX packet buffer from 7KB to 5KB per queue",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23122",
    "datePublished": "2026-02-14T15:09:52.592Z",
    "dateReserved": "2026-01-13T15:37:45.970Z",
    "dateUpdated": "2026-05-11T22:00:33.309Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-J2H6-X5FV-586Q

CVE-2026-23122 (GCVE-0-2026-23122)

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