Bug 2467216 (CVE-2026-43172) - CVE-2026-43172 kernel: wifi: iwlwifi: fix 22000 series SMEM parsing
Summary: CVE-2026-43172 kernel: wifi: iwlwifi: fix 22000 series SMEM parsing
Keywords:
Status: NEW
Alias: CVE-2026-43172
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 13:11 UTC by OSIDB Bzimport
Modified: 2026-05-06 19:57 UTC (History)
2 users (show)

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

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-05-06 13:11:22 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: fix 22000 series SMEM parsing

If the firmware were to report three LMACs (which doesn't
exist in hardware) then using "fwrt->smem_cfg.lmac[2]" is
an overrun of the array. Reject such and use IWL_FW_CHECK
instead of WARN_ON in this function.
Comment 1 Keith Grant 2026-05-06 19:57:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050635-CVE-2026-43172-6ed1@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.