CVE-2026-98889
Published Oct 23, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix sched scan IE sizing Scheduled scan built the probe request before iwl_mvm_scan_fits(), so oversized IEs could be copied into the fixed preq buffer before length validation. Move iwl_mvm_build_scan_probe() after the fits check. Also advertise max_sched_scan_ie_len using iwl_mvm_max_scan_ie_len() so userspace limits account for driver-inserted DS/TPC bytes.
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References
Other References
https://git.kernel.org/stable/c/05f79cea3b15cfe600b205ddcfd51ebee15d908a
https://git.kernel.org/stable/c/0a63f98e5163a2ec2822dfb691ee5a6094de08ec
https://git.kernel.org/stable/c/358eca9a898ad4cce7453e9dcfd005d019a2b01f
https://git.kernel.org/stable/c/4f155d262b31b9b17e0f9856bdabe0968eb4930f
https://git.kernel.org/stable/c/a24417478f90e9f1a4ea24cd4b784afccb56fbae
https://git.kernel.org/stable/c/f2268060e99f94314b9988dfa17393c2694fa9b2
Frequently Asked Questions
What is CVE-2026-98889? +
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix sched scan IE sizing
Scheduled scan built the probe request before iwl_mvm_scan_fits(),
so oversized IEs could be copied into the fixed preq buffer before
length validation. Move iwl_mvm_build_scan_probe() after the fits
check.
Also advertise max_sched_scan_ie_len using iwl_mvm_max_scan_ie_len()
so userspace limits account for driver-inserted DS/TPC bytes.
How do I check if I'm vulnerable to CVE-2026-98889? +
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.