Vulnerability-Lookup

GHSA-C5GG-V573-HV7F

Vulnerability from github – Published: 2026-02-18 15:31 – Updated: 2026-02-18 15:31

Details

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

wifi: mac80211: don't WARN for connections on invalid channels

It's not clear (to me) how exactly syzbot managed to hit this, but it seems conceivable that e.g. regulatory changed and has disabled a channel between scanning (channel is checked to be usable by cfg80211_get_ies_channel_number) and connecting on the channel later.

With one scenario that isn't covered elsewhere described above, the warning isn't good, replace it with a (more informative) error message.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71227"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-18T15:18:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: don\u0027t WARN for connections on invalid channels\n\nIt\u0027s not clear (to me) how exactly syzbot managed to hit this,\nbut it seems conceivable that e.g. regulatory changed and has\ndisabled a channel between scanning (channel is checked to be\nusable by cfg80211_get_ies_channel_number) and connecting on\nthe channel later.\n\nWith one scenario that isn\u0027t covered elsewhere described above,\nthe warning isn\u0027t good, replace it with a (more informative)\nerror message.",
  "id": "GHSA-c5gg-v573-hv7f",
  "modified": "2026-02-18T15:31:27Z",
  "published": "2026-02-18T15:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71227"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10d3ff7e5812c8d70300f6fa8f524009a06aa7e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99067b58a408a384d2a45c105eb3dce980a862ce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-71227 (GCVE-0-2025-71227)

Vulnerability from cvelistv5 – Published: 2026-02-18 14:21 – Updated: 2026-02-20 11:30

Title

wifi: mac80211: don't WARN for connections on invalid channels

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't WARN for connections on invalid channels It's not clear (to me) how exactly syzbot managed to hit this, but it seems conceivable that e.g. regulatory changed and has disabled a channel between scanning (channel is checked to be usable by cfg80211_get_ies_channel_number) and connecting on the channel later. With one scenario that isn't covered elsewhere described above, the warning isn't good, replace it with a (more informative) error message.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/10d3ff7e5812c8d70…
	https://git.kernel.org/stable/c/99067b58a408a384d…

Impacted products

Vendor

Product

Version

Linux

Affected: f2d9d270c15ae0139b54a7e7466d738327e97e03 , < 10d3ff7e5812c8d70300f6fa8f524009a06aa7e1 (git)
Affected: f2d9d270c15ae0139b54a7e7466d738327e97e03 , < 99067b58a408a384d2a45c105eb3dce980a862ce (git)

Linux

Affected: 3.8
Unaffected: 0 , < 3.8 (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "10d3ff7e5812c8d70300f6fa8f524009a06aa7e1",
              "status": "affected",
              "version": "f2d9d270c15ae0139b54a7e7466d738327e97e03",
              "versionType": "git"
            },
            {
              "lessThan": "99067b58a408a384d2a45c105eb3dce980a862ce",
              "status": "affected",
              "version": "f2d9d270c15ae0139b54a7e7466d738327e97e03",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
              "lessThan": "3.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.10",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: don\u0027t WARN for connections on invalid channels\n\nIt\u0027s not clear (to me) how exactly syzbot managed to hit this,\nbut it seems conceivable that e.g. regulatory changed and has\ndisabled a channel between scanning (channel is checked to be\nusable by cfg80211_get_ies_channel_number) and connecting on\nthe channel later.\n\nWith one scenario that isn\u0027t covered elsewhere described above,\nthe warning isn\u0027t good, replace it with a (more informative)\nerror message."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-20T11:30:51.767Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/10d3ff7e5812c8d70300f6fa8f524009a06aa7e1"
        },
        {
          "url": "https://git.kernel.org/stable/c/99067b58a408a384d2a45c105eb3dce980a862ce"
        }
      ],
      "title": "wifi: mac80211: don\u0027t WARN for connections on invalid channels",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71227",
    "datePublished": "2026-02-18T14:21:48.422Z",
    "dateReserved": "2026-02-14T16:26:02.970Z",
    "dateUpdated": "2026-02-20T11:30:51.767Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-C5GG-V573-HV7F

CVE-2025-71227 (GCVE-0-2025-71227)

Tags

Sightings

Nomenclature