Bug 2315179 (CVE-2024-46827) - CVE-2024-46827 kernel: wifi: ath12k: fix firmware crash due to invalid peer nss
Summary: CVE-2024-46827 kernel: wifi: ath12k: fix firmware crash due to invalid peer nss
Keywords:
Status: NEW
Alias: CVE-2024-46827
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2315278
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-09-27 13:21 UTC by OSIDB Bzimport
Modified: 2024-09-27 18:16 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2024-09-27 13:21:51 UTC
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


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