CVE-2025-38157: debian linux Memory Corruption — Fix

Description

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.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
linux	linux_kernel	3.0 — 5.4.295
linux	linux_kernel	5.5 — 5.10.239
linux	linux_kernel	5.11 — 5.15.186
linux	linux_kernel	5.16 — 6.1.142
linux	linux_kernel	6.2 — 6.6.94
linux	linux_kernel	6.7 — 6.12.34
linux	linux_kernel	6.13 — 6.15.3
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0281c19074976ec48f0078d50530b406ddae75bc https://git.kernel.org/stable/c/40471b23147c86ea3ed97faee79937c618250bd0 https://git.kernel.org/stable/c/5482ef9875eaa43f0435e14570e1193823de857e https://git.kernel.org/stable/c/5a85c21f812e02cb00ca07007d88acdd42d08c46 https://git.kernel.org/stable/c/7ee3fb6258da8c890a51b514f60d7570dc703605 https://git.kernel.org/stable/c/ac4e317a95a1092b5da5b9918b7118759342641c https://git.kernel.org/stable/c/e5ce9df1d68094d37360dbd9b09289d42fa21e54 https://git.kernel.org/stable/c/ee5ee646385f5846dcbc881389f3c44a197c402a

Other References

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2025-38157? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38157? +

CVE-2025-38157 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-38157? +

CVE-2025-38157 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-38157? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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