{
  "cveId": "CVE-2026-74554",
  "url": "https://patchblox.com/security/cve/CVE-2026-74554",
  "summary": "CVE-2026-74554 is fixed in linux on 1 platform by DEBIAN-CVE-2026-74554 (version 7.1.8-1), released August 16, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: ath12k: fix out-of-bounds clear_bit in ath...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  wifi: ath12k: fix out-of-bounds clear_bit in ath12k_mac_dp_peer_cleanup()  ath12k_mac_dp_peer_cleanup() clears the ML peer ID slot on the free_ml_peer_id_map bitmap by indexing it with dp_peer-\u003Epeer_id. That is wrong: dp_peer-\u003Epeer_id for an MLO peer always carries the ATH12K_PEER_ML_ID_VALID bit (BIT(13)), so clear_bit() is invoked with index \u003E= 0x2000, which is far outside the bitmap of ATH12K_MAX_MLO_PEERS (256) bits and corrupts memory adjacent to ah-\u003Efree_ml_peer_id_map. The intended bitmap entry also never gets cleared, so subsequent ath12k_peer_ml_alloc() calls eventually run out of IDs.  The ID without the VALID bit is what ath12k_peer_ml_alloc() returned and is stored in ahsta-\u003Eml_peer_id. Use that instead.  While there, also reset ahsta-\u003Eml_peer_id to ATH12K_MLO_PEER_ID_INVALID so the bitmap and ahsta-\u003Eml_peer_id stay in sync.  Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3",
  "published": "2026-08-15T13:18:00Z",
  "severity": "high",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00204,
  "epssPercentile": 0.10449,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.8-1",
      "fix": "DEBIAN-CVE-2026-74554",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-74554",
      "released": "2026-08-16T22:48:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}