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CVE-2026-97613

Estado: RecibidaSin puntuar—

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

net: mana: Reserve extra CQ slot for the fence completion CQE

The RX completion queue is sized to hold exactly one CQE per posted RX WQE. MANA_FENCE_RQ makes hardware post an additional CQE_RX_OBJECT_FENCE after the packet CQEs. The current sizing reserves no extra slot for it and in rare cases, CQ has no guaranteed slot for the fence CQE when it is full of packet CQEs. This can lead to dropping the fence completion while the driver waits holding RTNL lock throughout the timeout duration.

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Reserve one extra CQE slot for CQE_RX_OBJECT_FENCE. mana_gd_alloc_memory() requires queue_size to be a power-of-two and at least MANA_PAGE_SIZE; the reservation pushes cq_size past a power-of-two, so round up the CQ size in mana_create_rxq().

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-97613",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6cc74443a7732d7e93bee3d0c3704a22cc7274d9",
              "lessThan": "f7d76b84b9206eef4320d8ab715d65f944535acf",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6cc74443a7732d7e93bee3d0c3704a22cc7274d9",
              "lessThan": "62eb52454afcc1d390b8624c5d1ddc92cf382f39",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6cc74443a7732d7e93bee3d0c3704a22cc7274d9",
              "lessThan": "1e43c407624d2111c19d4d8ffe9b2191a0ec42de",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6cc74443a7732d7e93bee3d0c3704a22cc7274d9",
              "lessThan": "6c739cb89ebd6cf225dac46d2721e11927a7ead4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6cc74443a7732d7e93bee3d0c3704a22cc7274d9",
              "lessThan": "80dd7e754b3aa9637a0758ad93fa209f9650ec48",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/mana_en.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.17",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/mana_en.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-25T11:17:15.453",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1e43c407624d2111c19d4d8ffe9b2191a0ec42de",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/62eb52454afcc1d390b8624c5d1ddc92cf382f39",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6c739cb89ebd6cf225dac46d2721e11927a7ead4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/80dd7e754b3aa9637a0758ad93fa209f9650ec48",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f7d76b84b9206eef4320d8ab715d65f944535acf",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Reserve extra CQ slot for the fence completion CQE\n\nThe RX completion queue is sized to hold exactly one CQE per posted RX WQE.\nMANA_FENCE_RQ makes hardware post an additional CQE_RX_OBJECT_FENCE after\nthe packet CQEs. The current sizing reserves no extra slot for it and in\nrare cases, CQ has no guaranteed slot for the fence CQE when it is full of\npacket CQEs. This can lead to dropping the fence completion while the\ndriver waits holding RTNL lock throughout the timeout duration.\nReserve one extra CQE slot for CQE_RX_OBJECT_FENCE. mana_gd_alloc_memory()\nrequires queue_size to be a power-of-two and at least MANA_PAGE_SIZE;\nthe reservation pushes cq_size past a power-of-two, so round up the CQ size\nin mana_create_rxq()."
    }
  ],
  "lastModified": "2026-10-03T11:18:07.807",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}