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CVE-2026-98828

wifi: ath9k: reject short WMI command responses

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.12.113, 6.18.56, 7.2.10
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From fb9987d0f748c983bb795a86f47522313f701a08 · fixed in 03ef61d05aa26022327f971b790f07e6bf6e35d6; From fb9987d0f748c983bb795a86f47522313f701a08 · fixed in e0c21130c1c7791ba73b19a3a9ea767c8cd43745; From fb9987d0f748c983bb795a86f47522313f701a08 · fixed in a3b0137c855a61371d9cf9993b8bcc33c9798202; From fb9987d0f748c983bb795a86f47522313f701a08 · fixed in 93ce8ea70451e800601bc9444aa33043de15d67b

  • Linux Linux

    2.6.35

  • KernelLinux

    From 2.6.35 · fixed in 6.12.113; From 6.13.0 · fixed in 6.18.56; From 6.19.0 · fixed in 7.2.10

References 4

git.kernel.org