wifi: ath11k: fix peer HE MCS assignment
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
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"
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"prerequisites": [],
"fixed_versions": [
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"value": "6.1.160",
"evidence": "/affected/1/ranges"
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{
"value": "6.6.120",
"evidence": "/affected/1/ranges"
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{
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"evidence": "/affected/1/ranges"
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{
"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": [
{
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"type": "GIT",
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{
"fixed": "4304bd7a334e981f189b9973056a58f84cc2b482"
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{
"fixed": "097c870b91817779e5a312c6539099a884b1fe2b"
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"fixed": "381096a417b7019896e93e86f4c585c592bf98e2"
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{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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{
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"events": [
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{
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"events": [
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{
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{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.18.0"
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{
"fixed": "6.18.2"
}
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68380.json"
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],
"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"
}