Bug 2540504 (CVE-2026-93799) - CVE-2026-93799 kernel: wifi: iwlwifi: mvm: validate sta_id in BA window status notif
Summary: CVE-2026-93799 kernel: wifi: iwlwifi: mvm: validate sta_id in BA window statu...
Keywords:
Status: NEW
Alias: CVE-2026-93799
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: 2026-09-24 17:03 UTC by OSIDB Bzimport
Modified: 2026-09-28 12:03 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-24 17:03:19 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: validate sta_id in BA window status notif

BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the
firmware notification and uses it to index fw_id_to_mac_id[] without
bounds checking. Validate sta_id before array access to prevent
out-of-bounds indexing.
Comment 1 Mauro Matteo Cascella 2026-09-28 11:58:50 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93799.mbox
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