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nfc: pn533: purge fragmented skbs during cleanup

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-80797

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-2026-80797

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": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "130b5ad4492f8e53d0398ee3af2b0e2388504d11",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "9319c3c4962efc8697246b563ea31c6d47f085aa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "d63e85c5d5555fe6aa65155d3a09452597e163c3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "4a52ec2457ff8c26206fcc20fa1972cc35a678c4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "e169277281373818ae1cedf976aa1e99118fb77d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "2f5d093194ec24d7c29b91bf7df014924e0f4ea1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "e7ed2ea5590fbe2d3be39ee4fb0c758a12e31d0c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "e95beff58b38c871c557bf84e528408283c2c0ad",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "963a82e07d4e1f95fc423d53912ac0a7fe643b1c",
        "lessThan": "5718fc62198c38c2de5316020a90506f9e75e0bb",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/nfc/pn533/pn533.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.12"
      },
      {
        "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",
        "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/pn533/pn533.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-80797

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#34812 · Revision 1
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Publisher date
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