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nfc: microread: validate target discovery payload lengths

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: nfc: microread: validate target discovery payload lengths microread_target_discovered() parses target discovery payloads from skb->data according to the HCI gate. The fixed field offsets and UID copies were checked only against the destination nfc_target buffers, not against the actual skb length. Validate that each gate-specific payload contains the fixed fields and UID bytes before reading or copying them.

Announced Group revision 1
Original source ↗

CVE-2026-80801

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-80801

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "c6de4241f2efbbab286efbb84a9c7190298b3052",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "92a6f0201bb68391b5eba1b3f330af007d7323b6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "cb298672282421159e53ab311fe49d204c8a52da",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "18f02354ed229b8e4561b580812d026e7eb29c85",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "e6397fe7b8b5ef18e051f49612d40ff476c5f7d9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "d0902a7c454326c6384c614226ab8987f3fd425d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "dabfa26a208e56f4d8dbf26fddc48f188bdb0649",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "953963b9ac5eecbb316617d337bfaa3d731e3c5e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "cfad1ba87150e198be9ea32367a24e500e59de2c",
        "lessThan": "25519469972ef57c3edb1805dabd6c5612b90211",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/nfc/microread/microread.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.9"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.9",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.267",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.218",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.185",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.154",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.106",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.47",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.11",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.1",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/nfc/microread/microread.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-80801

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#34817 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-80801 · Revision 1Source updated