CVE-2026-46248 (GCVE-0-2026-46248)

Vulnerability from cvelistv5 – Published: 2026-06-03 15:49 – Updated: 2026-06-03 15:49
VLAI
Title
wifi: ath12k: clear stale link mapping of ahvif->links_map
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: clear stale link mapping of ahvif->links_map When an arvif is initialized in non-AP STA mode but MLO connection preparation fails before the arvif is created (arvif->is_created remains false), the error path attempts to delete all links. However, link deletion only executes when arvif->is_created is true. As a result, ahvif retains a stale entry of arvif that is initialized but not created. When a new arvif is initialized with the same link id, this stale mapping triggers the following WARN_ON. WARNING: drivers/net/wireless/ath/ath12k/mac.c:4271 at ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k], CPU#3: wpa_supplicant/275 Call trace: ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k] (P) drv_change_vif_links+0xbc/0x1a4 [mac80211] ieee80211_vif_update_links+0x54c/0x6a0 [mac80211] ieee80211_vif_set_links+0x40/0x70 [mac80211] ieee80211_prep_connection+0x84/0x450 [mac80211] ieee80211_mgd_auth+0x200/0x480 [mac80211] ieee80211_auth+0x14/0x20 [mac80211] cfg80211_mlme_auth+0x90/0xf0 [cfg80211] nl80211_authenticate+0x32c/0x380 [cfg80211] genl_family_rcv_msg_doit+0xc8/0x134 Fix this issue by unassigning the link vif and clearing ahvif->links_map if arvif is only initialized but not created. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.5-01651-QCAHKSWPL_SILICONZ-1
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 81e4be30544ee7e8da80e9aae7acd69d3be6d05a , < da289440f04c93048d82d293b180f1cacdfee2d9 (git)
Affected: 81e4be30544ee7e8da80e9aae7acd69d3be6d05a , < acd8319e834be6790e449701cb6df0f636801977 (git)
Affected: 81e4be30544ee7e8da80e9aae7acd69d3be6d05a , < 2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9 (git)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.18.14 , ≤ 6.18.* (semver)
Unaffected: 6.19.4 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath12k/mac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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              "cpeMatch": [
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                  "versionEndExcluding": "6.18.14",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.15",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-03T15:49:43.934Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/da289440f04c93048d82d293b180f1cacdfee2d9"
        },
        {
          "url": "https://git.kernel.org/stable/c/acd8319e834be6790e449701cb6df0f636801977"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9"
        }
      ],
      "title": "wifi: ath12k: clear stale link mapping of ahvif-\u003elinks_map",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46248",
    "datePublished": "2026-06-03T15:49:43.934Z",
    "dateReserved": "2026-05-13T15:03:33.107Z",
    "dateUpdated": "2026-06-03T15:49:43.934Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-46248\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-03T18:16:25.097\",\"lastModified\":\"2026-06-03T18:16:25.097\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/acd8319e834be6790e449701cb6df0f636801977\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/da289440f04c93048d82d293b180f1cacdfee2d9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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