{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.8-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "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",
  "id": "DEBIAN-CVE-2026-74554",
  "modified": "2026-09-14T16:47:38.601582254Z",
  "published": "2026-08-15T13:18:00.830Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-74554"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-74554"
  ]
}