wifi: ath9k: reject short WMI command responses
CVE-2026-98828 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-98828, released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 13.5 (trixie) | 6.12.113-1 | DEBIAN-CVE-2026-98828 | Oct 19, 2026 |
| linux · Debian 14 | 7.2.10-1 | DEBIAN-CVE-2026-98828 | Oct 19, 2026 |
| linux-6.12 · Debian 12.15 (bookworm) | 6.12.113-1~deb12u1 | DEBIAN-CVE-2026-98828 | Oct 19, 2026 |
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