CVE-2026-43172

High

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.

SeverityHigh
CVSS8.8
Exploit probability—
ProductLinux Kernel
PublishedMay 6, 2026
First seenMay 6, 2026
Weakness typeCWE-129CWE-129

How to fix

Update
  • linux linux_kernel6.18.16, 6.19.6 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel5.8 ≤ v < 6.18.16, 6.19 ≤ v < 6.19.66.18.16, 6.19.6
microsoft azl3_kernel_6.6.137.1-2No range specified—
microsoft azl3_kernel_6.6.138.1-1No range specified—
microsoft azl3_kernel_6.6.141.1-1No range specified—
microsoft azl3_kernel_6.6.144.1-1No range specified—
microsoft azl3_kernel_6.6.145.2-1No range specified—
microsoft azl3_kernel_6.6.152.1-1No range specified—
microsoft azl3_kernel_6.6.157.1-1No range specified—
microsoft azl3_kernel_6.6.139.1-1No range specified—
microsoft azl3_kernel_6.6.143.1-1No range specified—
microsoft azl3_kernel_6.6.150.1-1No range specified—
microsoft azl3_kernel_6.6.159.1-1No range specified—

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CVE-2026-43172 · Linux Kernel · Dark Radar