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wifi: ath11k: fix peer HE MCS assignment

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix peer HE MCS assignment In ath11k_wmi_send_peer_assoc_cmd(), peer's transmit MCS is sent to firmware as receive MCS while peer's receive MCS sent as transmit MCS, which goes against firmwire's definition. While connecting to a misbehaved AP that advertises 0xffff (meaning not supported) for 160 MHz transmit MCS map, firmware crashes due to 0xffff is assigned to he_mcs->rx_mcs_set field. Ext Tag: HE Capabilities [...] Supported HE-MCS and NSS Set [...] Rx and Tx MCS Maps 160 MHz [...] Tx HE-MCS Map 160 MHz: 0xffff Swap the assignment to fix this issue. As the HE rate control mask is meant to limit our own transmit MCS, it needs to go via he_mcs->rx_mcs_set field. With the aforementioned swapping done, change is needed as well to apply it to the peer's receive MCS. Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Products
Kernel
Affected versions
Not specified
Fixed versions
6.1.160, 6.12.63, 6.17.13, 6.18.2, 6.6.120
CVEs
CVE-2025-68380
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 19:46 UTC · Revision 1

Source evidence

wifi: ath11k: fix peer HE MCS assignment

core-osv · Original source

Published 24 Dec 2025, 10:33 UTC

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix peer HE MCS assignment In ath11k_wmi_send_peer_assoc_cmd(), peer's transmit MCS is sent to firmware as receive MCS while peer's receive MCS sent as transmit MCS, which goes against firmwire's definition. While connecting to a misbehaved AP that advertises 0xffff (meaning not supported) for 160 MHz transmit MCS map, firmware crashes due to 0xffff is assigned to he_mcs->rx_mcs_set field. Ext Tag: HE Capabilities [...] Supported HE-MCS and NSS Set [...] Rx and Tx MCS Maps 160 MHz [...] Tx HE-MCS Map 160 MHz: 0xffff Swap the assignment to fix this issue. As the HE rate control mask is meant to limit our own transmit MCS, it needs to go via he_mcs->rx_mcs_set field. With the aforementioned swapping done, change is needed as well to apply it to the peer's receive MCS. Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

osv:CVE-2025-68380

Kernel

Fixed versions: 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2

Complete source record
{
  "id": "751382a60504902b1cd19988eae3e29d86f01942e5f44a3986c6afe60b738b3b",
  "url": "https://osv.dev/vulnerability/CVE-2025-68380",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: ath11k: fix peer HE MCS assignment",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix peer HE MCS assignment In ath11k_wmi_send_peer_assoc_cmd(), peer's transmit MCS is sent to firmware as receive MCS while peer's receive MCS sent as transmit MCS, which goes against firmwire's definition. While connecting to a misbehaved AP that advertises 0xffff (meaning not supported) for 160 MHz transmit MCS map, firmware crashes due to 0xffff is assigned to he_mcs->rx_mcs_set field. Ext Tag: HE Capabilities [...] Supported HE-MCS and NSS Set [...] Rx and Tx MCS Maps 160 MHz [...] Tx HE-MCS Map 160 MHz: 0xffff Swap the assignment to fix this issue. As the HE rate control mask is meant to limit our own transmit MCS, it needs to go via he_mcs->rx_mcs_set field. With the aforementioned swapping done, change is needed as well to apply it to the peer's receive MCS. Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1",
    "evidence": "osv:CVE-2025-68380",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.120",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.63",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.17.13",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-68380",
      "aliases": [
        "CVE-2025-68380"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "61fe43e7216df6e9a912d831aafc7142fa20f280"
                },
                {
                  "fixed": "92791290e4f6a1de25d35af792ab8918a70737f6"
                },
                {
                  "fixed": "4304bd7a334e981f189b9973056a58f84cc2b482"
                },
                {
                  "fixed": "097c870b91817779e5a312c6539099a884b1fe2b"
                },
                {
                  "fixed": "381096a417b7019896e93e86f4c585c592bf98e2"
                },
                {
                  "fixed": "6b1a0da75932353f66e710976ca85a7131f647ff"
                },
                {
                  "fixed": "4a013ca2d490c73c40588d62712ffaa432046a04"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68380.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.160"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.120"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.63"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.17.13"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68380.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.032890480Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/097c870b91817779e5a312c6539099a884b1fe2b",
        "https://git.kernel.org/stable/c/381096a417b7019896e93e86f4c585c592bf98e2",
        "https://git.kernel.org/stable/c/4304bd7a334e981f189b9973056a58f84cc2b482",
        "https://git.kernel.org/stable/c/4a013ca2d490c73c40588d62712ffaa432046a04",
        "https://git.kernel.org/stable/c/6b1a0da75932353f66e710976ca85a7131f647ff",
        "https://git.kernel.org/stable/c/92791290e4f6a1de25d35af792ab8918a70737f6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68380.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68380",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68380.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-68380",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 489354,
  "published_at": "2025-12-24T10:33:08.266+00:00"
}