fkie_cve-2025-68380
Vulnerability from fkie_nvd
Published
2025-12-24 11:16
Modified
2025-12-24 11:16
Severity ?
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/097c870b91817779e5a312c6539099a884b1fe2b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/381096a417b7019896e93e86f4c585c592bf98e2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a013ca2d490c73c40588d62712ffaa432046a04
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6b1a0da75932353f66e710976ca85a7131f647ff
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix peer HE MCS assignment\n\nIn ath11k_wmi_send_peer_assoc_cmd(), peer\u0027s transmit MCS is sent to\nfirmware as receive MCS while peer\u0027s receive MCS sent as transmit MCS,\nwhich goes against firmwire\u0027s definition.\n\nWhile connecting to a misbehaved AP that advertises 0xffff (meaning not\nsupported) for 160 MHz transmit MCS map, firmware crashes due to 0xffff\nis assigned to he_mcs-\u003erx_mcs_set field.\n\n\tExt Tag: HE Capabilities\n\t    [...]\n\t    Supported HE-MCS and NSS Set\n\t\t[...]\n\t        Rx and Tx MCS Maps 160 MHz\n\t\t    [...]\n\t            Tx HE-MCS Map 160 MHz: 0xffff\n\nSwap the assignment to fix this issue.\n\nAs the HE rate control mask is meant to limit our own transmit MCS, it\nneeds to go via he_mcs-\u003erx_mcs_set field. With the aforementioned swapping\ndone, change is needed as well to apply it to the peer\u0027s receive MCS.\n\nTested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1"
    }
  ],
  "id": "CVE-2025-68380",
  "lastModified": "2025-12-24T11:16:01.593",
  "metrics": {},
  "published": "2025-12-24T11:16:01.593",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/097c870b91817779e5a312c6539099a884b1fe2b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/381096a417b7019896e93e86f4c585c592bf98e2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4a013ca2d490c73c40588d62712ffaa432046a04"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6b1a0da75932353f66e710976ca85a7131f647ff"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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