CVE-2026-43172
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-43172
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-43172.html
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | fixed | 6.19.6-1 |
| debian | sid | fixed | 6.19.6-1 |
| debian | trixie | affected | |
| linux-kernel | affected | 6.18.16 |
References
- https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9
- https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205
- https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98
- https://www.suse.com/security/cve/CVE-2026-43172.html
- https://security-tracker.debian.org/tracker/CVE-2026-43172
Verify integrity in audit chain (admin only). AS-IS.