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CVE-2026-80797

Estado: RecibidaSin puntuar—

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

nfc: pn533: purge fragmented skbs during cleanup

pn53x_common_clean() purges resp_q before freeing the common PN533 state, but it leaves fragment_skb untouched. The fragmentation helpers queue transmit fragments there while sending large initiator or target-mode frames, and those skbs remain owned by the driver until they are sent or discarded.

If the device is removed while fragments are still queued, the common cleanup path frees the PN533 state without releasing the queued fragment skbs, leaking them.

Purge fragment_skb during cleanup alongside resp_q.

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-2026-80797",
  "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": [
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              "status": "affected",
              "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
              "lessThan": "130b5ad4492f8e53d0398ee3af2b0e2388504d11",
              "versionType": "git"
            },
            {
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              "lessThan": "9319c3c4962efc8697246b563ea31c6d47f085aa",
              "versionType": "git"
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              "lessThan": "d63e85c5d5555fe6aa65155d3a09452597e163c3",
              "versionType": "git"
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            {
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          "programFiles": [
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          ],
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        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "version": "3.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.267",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.218",
              "versionType": "semver",
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            },
            {
              "status": "unaffected",
              "version": "6.1.185",
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            },
            {
              "status": "unaffected",
              "version": "6.6.154",
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            },
            {
              "status": "unaffected",
              "version": "6.12.106",
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              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.47",
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            },
            {
              "status": "unaffected",
              "version": "7.1.11",
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            },
            {
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              "version": "7.2.1",
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              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/nfc/pn533/pn533.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-04T16:18:06.333",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/130b5ad4492f8e53d0398ee3af2b0e2388504d11",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/2f5d093194ec24d7c29b91bf7df014924e0f4ea1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/4a52ec2457ff8c26206fcc20fa1972cc35a678c4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/5718fc62198c38c2de5316020a90506f9e75e0bb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/9319c3c4962efc8697246b563ea31c6d47f085aa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d63e85c5d5555fe6aa65155d3a09452597e163c3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e169277281373818ae1cedf976aa1e99118fb77d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e7ed2ea5590fbe2d3be39ee4fb0c758a12e31d0c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e95beff58b38c871c557bf84e528408283c2c0ad",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: purge fragmented skbs during cleanup\n\npn53x_common_clean() purges resp_q before freeing the common PN533 state,\nbut it leaves fragment_skb untouched.  The fragmentation helpers queue\ntransmit fragments there while sending large initiator or target-mode\nframes, and those skbs remain owned by the driver until they are sent or\ndiscarded.\n\nIf the device is removed while fragments are still queued, the common\ncleanup path frees the PN533 state without releasing the queued fragment\nskbs, leaking them.\n\nPurge fragment_skb during cleanup alongside resp_q."
    }
  ],
  "lastModified": "2026-09-04T16:18:06.333",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}