CVE-2022-49646 (GCVE-0-2022-49646)
Vulnerability from cvelistv5
Published
2025-02-26 02:23
Modified
2025-06-19 12:56
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1974da8b31e6ea9c96c21505ffcb546fa59add23
Version: 1974da8b31e6ea9c96c21505ffcb546fa59add23
Version: 1974da8b31e6ea9c96c21505ffcb546fa59add23
Version: 1974da8b31e6ea9c96c21505ffcb546fa59add23
Version: 1974da8b31e6ea9c96c21505ffcb546fa59add23
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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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          "url": "https://git.kernel.org/stable/c/444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0"
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          "url": "https://git.kernel.org/stable/c/e013ea2a51a94b903b396a8dff531a07d470335d"
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          "url": "https://git.kernel.org/stable/c/50e2ab39291947b6c6c7025cf01707c270fcde59"
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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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