CVE-2026-98828

LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.0/ 10 priority

Sources & remediation

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-29: 110-29
Full discourse1 post
  • Mike Lundy@mikelundy

    Heads-up: the CVE-2026-98828 ath9k fix (in 7.2.10+, 6.18.56+, 6.12.113+, 7.3) breaks AR9271 USB adapters. The firmware acks register writes with an empty WMI payload; the fix rejects that, so every write fails and ip link set up returns "Message too long". #linux #wifi

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