What’s Vulnerable › Vulnerabilities

CVE-2026-98889: wifi: iwlwifi: mvm: fix sched scan IE sizing

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-23 · updated 2026-10-26

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.

Affected products

• Linux kernel: before 5.15.222; before 6.1.189; before 6.6.158; before 6.12.111; before 6.18.53 — fixed in 5.15.222, 6.1.189, 6.12.111, 6.18.53, 6.6.158, 7.2

How to fix

Upgrade to a fixed version: Linux kernel 5.15.222, 6.1.189, 6.12.111, 6.18.53. Check the vendor advisory for mitigations.

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

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