{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "81e4be30544ee7e8da80e9aae7acd69d3be6d05a"
            },
            {
              "fixed": "da289440f04c93048d82d293b180f1cacdfee2d9"
            },
            {
              "fixed": "acd8319e834be6790e449701cb6df0f636801977"
            },
            {
              "fixed": "2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.18.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46248.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: clear stale link mapping of ahvif-\u003elinks_map\n\nWhen an arvif is initialized in non-AP STA mode but MLO connection\npreparation fails before the arvif is created\n(arvif-\u003eis_created remains false), the error path attempts to delete all\nlinks. However, link deletion only executes when arvif-\u003eis_created is true.\nAs a result, ahvif retains a stale entry of arvif that is initialized but\nnot created.\n\nWhen a new arvif is initialized with the same link id, this stale mapping\ntriggers the following WARN_ON.\n\nWARNING: drivers/net/wireless/ath/ath12k/mac.c:4271 at ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k], CPU#3: wpa_supplicant/275\n\nCall trace:\n ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k] (P)\n drv_change_vif_links+0xbc/0x1a4 [mac80211]\n ieee80211_vif_update_links+0x54c/0x6a0 [mac80211]\n ieee80211_vif_set_links+0x40/0x70 [mac80211]\n ieee80211_prep_connection+0x84/0x450 [mac80211]\n ieee80211_mgd_auth+0x200/0x480 [mac80211]\n ieee80211_auth+0x14/0x20 [mac80211]\n cfg80211_mlme_auth+0x90/0xf0 [cfg80211]\n nl80211_authenticate+0x32c/0x380 [cfg80211]\n genl_family_rcv_msg_doit+0xc8/0x134\n\nFix this issue by unassigning the link vif and clearing ahvif-\u003elinks_map\nif arvif is only initialized but not created.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.5-01651-QCAHKSWPL_SILICONZ-1",
  "id": "CVE-2026-46248",
  "modified": "2026-07-08T05:39:27.826580452Z",
  "published": "2026-06-03T15:49:43.934Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/acd8319e834be6790e449701cb6df0f636801977"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da289440f04c93048d82d293b180f1cacdfee2d9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46248.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46248"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "wifi: ath12k: clear stale link mapping of ahvif-\u003elinks_map"
}