CVE-2026-43172 PUBLISHED

wifi: iwlwifi: fix 22000 series SMEM parsing

Assigner: Linux
Reserved: 01.05.2026 Published: 06.05.2026 Updated: 06.05.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 2b4b1510aaaf5b9fb57327ecffc20c055f61f205 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 58192b9ce09b0f0f86e2036683bd542130b91a98 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 6.18.16 to 6.18.* (incl.)
  • unaffected from 6.19.6 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References