Bug 2559561 (CVE-2026-98889) - CVE-2026-98889 kernel: wifi: iwlwifi: mvm: fix sched scan IE sizing
Summary: CVE-2026-98889 kernel: wifi: iwlwifi: mvm: fix sched scan IE sizing
Keywords:
Status: NEW
Alias: CVE-2026-98889
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-23 11:58 UTC by OSIDB Bzimport
Modified: 2026-10-26 13:21 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-10-23 11:58:57 UTC
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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