CVE-2026-43172

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

11 Nov 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: wifi: iwlwifi: corregir el análisis SMEM de la serie 22000 Si el firmware informara de tres LMAC (lo cual no existe en el hardware), entonces usar fwrt -> smem_cfg.lmac[2] es un desbordamiento del array. Rechazar tal y usar IWL_FW_CHECK en lugar de WARN_ON en esta función.

21 Oct 2026, 13:18

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/5cc021586420c5e13acc65da5bf73edd451e2c3e - () https://git.kernel.org/stable/c/b23c7cd616a6a113363be707b7b9e4bc41b18a07 -

19 Oct 2026, 20:18

Type	Values Removed	Values Added
CWE		CWE-129

Information

Published : 2026-05-06 12:16

Updated : 2026-11-11 20:10

NVD link : CVE-2026-43172

Mitre link : CVE-2026-43172

CVE.ORG link : CVE-2026-43172

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo CWE-129

Improper Validation of Array Index

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Rechazar tal y usar IWL_FW_CHECK en lugar de WARN_ON en esta funci\u00f3n."}], "lastModified": "2026-11-11T20:10:00.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6F6A9564-8939-4C1F-8042-65035D578DD8", "versionEndExcluding": "6.18.16", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}