FKIE_CVE-2026-46152

Vulnerability from fkie_nvd - Published: 2026-05-28 10:16 - Updated: 2026-05-28 13:44
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drop stray 'static' from fast-RX rx_result ieee80211_invoke_fast_rx() is documented as safe for parallel RX, but its per-invocation rx_result is declared static. Concurrent callers then share one instance and can overwrite each other's result between ieee80211_rx_mesh_data() and the switch on res. That can make a packet that was queued or consumed by ieee80211_rx_mesh_data() fall through into ieee80211_rx_8023(), or make a packet that should continue return as queued. Make res an automatic variable so each invocation keeps its own result.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03584528bfffb195e384698af9148b94e42e3f14
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1739fc31b4de06c5c78ce0741182770fb079091e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ef44f96ccc3e06e059dec57842e366f0c4b1893
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e131562d6f2b958148c35c98831b007f47f0e3d3
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: drop stray \u0027static\u0027 from fast-RX rx_result\n\nieee80211_invoke_fast_rx() is documented as safe for parallel RX, but\nits per-invocation rx_result is declared static. Concurrent callers then\nshare one instance and can overwrite each other\u0027s result between\nieee80211_rx_mesh_data() and the switch on res.\n\nThat can make a packet that was queued or consumed by\nieee80211_rx_mesh_data() fall through into ieee80211_rx_8023(), or make\na packet that should continue return as queued.\n\nMake res an automatic variable so each invocation keeps its own result."
    }
  ],
  "id": "CVE-2026-46152",
  "lastModified": "2026-05-28T13:44:01.663",
  "metrics": {},
  "published": "2026-05-28T10:16:30.827",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/03584528bfffb195e384698af9148b94e42e3f14"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1739fc31b4de06c5c78ce0741182770fb079091e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3ef44f96ccc3e06e059dec57842e366f0c4b1893"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e131562d6f2b958148c35c98831b007f47f0e3d3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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