CVE-2024-46827

wifi: ath12k: fix firmware crash due to invalid peer nss

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

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/838c2cfdb6be7d7d8c06c711edf893eb34ca2e7c	patch
https://git.kernel.org/stable/c/25a15f80253a7c8776e4e4880d797d20ec864154	patch
https://git.kernel.org/stable/c/db163a463bb93cd3e37e1e7b10b9726fb6f95857	patch

Frequently Asked Questions

What is the severity of CVE-2024-46827?: CVE-2024-46827 has been scored as a medium severity vulnerability.
How to fix CVE-2024-46827?: To fix CVE-2024-46827, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-46827 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-46827 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-46827?: CVE-2024-46827 affects Linux Linux, Linux Linux.

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