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CVE-2026-43172

wifi: iwlwifi: fix 22000 series SMEM parsing

HIGH
8.8
CVSS Score
Published: May 6, 2026 at 11:27 AM UTC
Updated: October 21, 2026 at 01:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.8 ≤ v < 6.18.166.19 ≤ v < 6.19.65.8ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424
Vendor states this is fixed in 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9 (fixed)
Vendor states this is fixed in 2b4b1510aaaf5b9fb57327ecffc20c055f61f205 (fixed)
Vendor states this is fixed in 58192b9ce09b0f0f86e2036683bd542130b91a98 (fixed)
Vendor states this is fixed in 5.8 (unaffected)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.16 (unaffected)
Vendor states this is fixed in 6.19.6 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

References (5)

Patch
Source: cverecord
https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9
Patch
Source: cverecord
https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205
Patch
Source: cverecord
https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98
Source: cverecord
https://git.kernel.org/stable/c/5cc021586420c5e13acc65da5bf73edd451e2c3e
Source: cverecord
https://git.kernel.org/stable/c/b23c7cd616a6a113363be707b7b9e4bc41b18a07

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-129

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