In the Linux kernel, the following vulnerability has been resolved:

wifi: ath9k: reject short WMI command responses

ath9k_wmi_rsp_callback() removes the validated WMI header and copies
the number of bytes expected by the waiting command into its response
buffer. A device response shorter than that expectation can therefore
be read beyond the skb payload.

Record -EMSGSIZE for a short response, complete the waiter, and return
the stored status from the command path. This also prevents callers from
consuming stale response bytes as a successful reply.
Advisories

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Fixes

Solution

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Workaround

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History

Sun, 18 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125

Sun, 18 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: reject short WMI command responses ath9k_wmi_rsp_callback() removes the validated WMI header and copies the number of bytes expected by the waiting command into its response buffer. A device response shorter than that expectation can therefore be read beyond the skb payload. Record -EMSGSIZE for a short response, complete the waiter, and return the stored status from the command path. This also prevents callers from consuming stale response bytes as a successful reply.
Title wifi: ath9k: reject short WMI command responses
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-18T15:49:22.580Z

Reserved: 2026-09-25T10:25:14.372Z

Link: CVE-2026-98828

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-18T16:17:37.043

Modified: 2026-10-18T16:17:37.043

Link: CVE-2026-98828

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T20:30:17Z

Weaknesses