ghsa-96x7-qg22-qw59
Vulnerability from github
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
{
"affected": [],
"aliases": [
"CVE-2025-68380"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-24T11:16:01Z",
"severity": null
},
"details": "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": "GHSA-96x7-qg22-qw59",
"modified": "2025-12-24T12:30:30Z",
"published": "2025-12-24T12:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68380"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/097c870b91817779e5a312c6539099a884b1fe2b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/381096a417b7019896e93e86f4c585c592bf98e2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4a013ca2d490c73c40588d62712ffaa432046a04"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6b1a0da75932353f66e710976ca85a7131f647ff"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.