CVE-2022-49646 (GCVE-0-2022-49646)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2025-06-19 12:56
VLAI?
Title
wifi: mac80211: fix queue selection for mesh/OCB interfaces
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix queue selection for mesh/OCB interfaces When using iTXQ, the code assumes that there is only one vif queue for broadcast packets, using the BE queue. Allowing non-BE queue marking violates that assumption and txq->ac == skb_queue_mapping is no longer guaranteed. This can cause issues with queue handling in the driver and also causes issues with the recent ATF change, resulting in an AQL underflow warning.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1974da8b31e6ea9c96c21505ffcb546fa59add23 , < 444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0 (git)
Affected: 1974da8b31e6ea9c96c21505ffcb546fa59add23 , < e013ea2a51a94b903b396a8dff531a07d470335d (git)
Affected: 1974da8b31e6ea9c96c21505ffcb546fa59add23 , < 5a9df31017999197b6e60535940f2f2fe1bd3b0d (git)
Affected: 1974da8b31e6ea9c96c21505ffcb546fa59add23 , < 41ecab279a70dced9005f4d55fa0fcde8938603f (git)
Affected: 1974da8b31e6ea9c96c21505ffcb546fa59add23 , < 50e2ab39291947b6c6c7025cf01707c270fcde59 (git)
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    Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.4.207 , ≤ 5.4.* (semver)
Unaffected: 5.10.132 , ≤ 5.10.* (semver)
Unaffected: 5.15.56 , ≤ 5.15.* (semver)
Unaffected: 5.18.13 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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{
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix queue selection for mesh/OCB interfaces\n\nWhen using iTXQ, the code assumes that there is only one vif queue for\nbroadcast packets, using the BE queue. Allowing non-BE queue marking\nviolates that assumption and txq-\u003eac == skb_queue_mapping is no longer\nguaranteed. This can cause issues with queue handling in the driver and\nalso causes issues with the recent ATF change, resulting in an AQL\nunderflow warning."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-19T12:56:22.868Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "wifi: mac80211: fix queue selection for mesh/OCB interfaces",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49646",
    "datePublished": "2025-02-26T02:23:51.083Z",
    "dateReserved": "2025-02-26T02:21:30.432Z",
    "dateUpdated": "2025-06-19T12:56:22.868Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.