FKIE_CVE-2026-80779

Vulnerability from fkie_nvd - Published: 2026-09-04 16:18 - Updated: 2026-10-19 09:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: net/ionic: avoid OOB TX partner lookup for hwstamp RXQ The dedicated hardware timestamp RX queue is allocated with q->index equal to lif->ionic->nrxqs_per_lif. The normal txqcqs array only contains the regular queue pairs, so using that index to set rxq->partner can read one entry past txqcqs[] and then write through the derived pointer. Only link RX/TX partners for normal queue-pair indexes. Leave the hwstamp RX queue unpaired, and make the XDP_TX path abort cleanly if an RX queue has no TX partner.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39fc615e355b65b8d43be30da57aa95ae6eaf688
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/881a805a8029ba48c0ce81c6674910f8d83f7afb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d92255b405fb6f5acca408239ccd742e0a42c9cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ea081b4435515ac7177eb598a3c0678d1b9e7911
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f3868046e8e2e761d4d943a232bd109ff22a7d5b
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/pensando/ionic/ionic_lif.c",
            "drivers/net/ethernet/pensando/ionic/ionic_txrx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "881a805a8029ba48c0ce81c6674910f8d83f7afb",
              "status": "affected",
              "version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
              "versionType": "git"
            },
            {
              "lessThan": "39fc615e355b65b8d43be30da57aa95ae6eaf688",
              "status": "affected",
              "version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
              "versionType": "git"
            },
            {
              "lessThan": "f3868046e8e2e761d4d943a232bd109ff22a7d5b",
              "status": "affected",
              "version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
              "versionType": "git"
            },
            {
              "lessThan": "ea081b4435515ac7177eb598a3c0678d1b9e7911",
              "status": "affected",
              "version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
              "versionType": "git"
            },
            {
              "lessThan": "d92255b405fb6f5acca408239ccd742e0a42c9cb",
              "status": "affected",
              "version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/pensando/ionic/ionic_lif.c",
            "drivers/net/ethernet/pensando/ionic/ionic_txrx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.106",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/ionic: avoid OOB TX partner lookup for hwstamp RXQ\n\nThe dedicated hardware timestamp RX queue is allocated with q-\u003eindex\nequal to lif-\u003eionic-\u003enrxqs_per_lif. The normal txqcqs array only\ncontains the regular queue pairs, so using that index to set rxq-\u003epartner\ncan read one entry past txqcqs[] and then write through the derived\npointer.\nOnly link RX/TX partners for normal queue-pair indexes. Leave the hwstamp\nRX queue unpaired, and make the XDP_TX path abort cleanly if an RX queue\nhas no TX partner."
    }
  ],
  "id": "CVE-2026-80779",
  "lastModified": "2026-10-19T09:17:12.003",
  "metrics": {},
  "published": "2026-09-04T16:18:03.607",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/39fc615e355b65b8d43be30da57aa95ae6eaf688"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/881a805a8029ba48c0ce81c6674910f8d83f7afb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d92255b405fb6f5acca408239ccd742e0a42c9cb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ea081b4435515ac7177eb598a3c0678d1b9e7911"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f3868046e8e2e761d4d943a232bd109ff22a7d5b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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