Bug 2376096 (CVE-2025-38157)

Summary: CVE-2025-38157 kernel: Linux kernel's ath9k_htc Wi-Fi driver: Denial of Service or information disclosure via malicious USB device input
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's ath9k_htc Wi-Fi driver. A malicious Universal Serial Bus (USB) device can send a specific event (WMI_SWBA_EVENTID) before the Wi-Fi beaconing feature is enabled. This can lead to a critical error within the driver, potentially causing the system to crash (Denial of Service) or allowing an attacker to read sensitive information from memory (information disclosure).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-07-03 09:04:51 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: ath9k_htc: Abort software beacon handling if disabled

A malicious USB device can send a WMI_SWBA_EVENTID event from an
ath9k_htc-managed device before beaconing has been enabled. This causes
a device-by-zero error in the driver, leading to either a crash or an
out of bounds read.

Prevent this by aborting the handling in ath9k_htc_swba() if beacons are
not enabled.
Comment 1 Avinash Hanwate 2025-07-03 14:00:44 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025070338-CVE-2025-38157-bc8c@gregkh/T