Vulnerability-Lookup

GHSA-C5GG-V573-HV7F

Vulnerability from github – Published: 2026-02-18 15:31 – Updated: 2026-03-18 21:32

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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JSON

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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": "MODERATE"
  },
  "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": "2026-03-18T21:32:57Z",
  "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": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-02-18 14:21 – Updated: 2026-05-11 21:56

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 mitre root

References

2 references

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

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f2d9d270c15ae0139b54a7e7466d738327e97e03 , < 10d3ff7e5812c8d70300f6fa8f524009a06aa7e1 (git) Affected: f2d9d270c15ae0139b54a7e7466d738327e97e03 , < 99067b58a408a384d2a45c105eb3dce980a862ce (git)
Linux	Linux	Affected: 3.8 Unaffected: 0 , < 3.8 (semver) Unaffected: 6.18.10 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

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JSON

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      "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",
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            }
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        },
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          "product": "Linux",
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          ],
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          "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": [
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                  "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:*:*:*:*:*:*:*:*",
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:56:48.727Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        },
        {
          "url": "https://git.kernel.org/stable/c/99067b58a408a384d2a45c105eb3dce980a862ce"
        }
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71227",
    "datePublished": "2026-02-18T14:21:48.422Z",
    "dateReserved": "2026-02-14T16:26:02.970Z",
    "dateUpdated": "2026-05-11T21:56:48.727Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-C5GG-V573-HV7F

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

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