CVE-2024-46827

MEDIUM

Linux Kernel - Denial of Service via Invalid Peer NSS in WiFi Association Request

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix firmware crash due to invalid peer nss Currently, if the access point receives an association request containing an Extended HE Capabilities Information Element with an invalid MCS-NSS, it triggers a firmware crash. This issue arises when EHT-PHY capabilities shows support for a bandwidth and MCS-NSS set for that particular bandwidth is filled by zeros and due to this, driver obtains peer_nss as 0 and sending this value to firmware causes crash. Address this issue by implementing a validation step for the peer_nss value before passing it to the firmware. If the value is greater than zero, proceed with forwarding it to the firmware. However, if the value is invalid, reject the association request to prevent potential firmware crashes. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Scores

CVSS v3 5.5
EPSS 0.0023
EPSS Percentile 14.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (11)
linux/Kernel 6.3.0 - 6.6.51linux
linux/Kernel 6.7.0 - 6.10.10linux
Linux/Linux < 6.3
Linux/Linux 6.10.10 - 6.10.*
Linux/Linux 6.11
Linux/Linux 6.3
Linux/Linux 6.6.51 - 6.6.*
Linux/Linux d889913205cf7ebda905b1e62c5867ed4e39f6c2 - 25a15f80253a7c8776e4e4880d797d20ec864154
Linux/Linux d889913205cf7ebda905b1e62c5867ed4e39f6c2 - 838c2cfdb6be7d7d8c06c711edf893eb34ca2e7c
Linux/Linux d889913205cf7ebda905b1e62c5867ed4e39f6c2 - db163a463bb93cd3e37e1e7b10b9726fb6f95857
... and 1 more
Published Sep 27, 2024
Tracked Since Feb 18, 2026