wifi: iwlwifi: fix 22000 series SMEM parsing
CVE-2026-43172 · published 6 May 2026
How serious is it
- Severity: high, CVSS score 8.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-43172?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to < 5cc021586420c5e13acc65da5bf73edd451e2c3e, ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to < b23c7cd616a6a113363be707b7b9e4bc41b18a07, ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to < 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9, ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to < 2b4b1510aaaf5b9fb57327ecffc20c055f61f205
- Linux Linux: 5.8
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/5cc021586420c5e13acc65da5bf73edd451e2c3e
- git.kernel.org/stable/c/b23c7cd616a6a113363be707b7b9e4bc41b18a07
- git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9
- git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205
- git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON