Riskcovery

CVE-2026-43172

wifi: iwlwifi: fix 22000 series SMEM parsing

State
Published
Severity
8.8 High
Published
May 6, 2026
Updated
Oct 21, 2026
Reserved
May 1, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

  • CWE-129 Improper Validation of Array Index

Affected Products

ProductVersions
LinuxLinux
  • ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to before 5cc021586420c5e13acc65da5bf73edd451e2c3eAffected
  • ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to before b23c7cd616a6a113363be707b7b9e4bc41b18a07Affected
  • ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to before 1d49a42717bdc8de77eabeb5b7d3e88d141ffea9Affected
  • ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to before 2b4b1510aaaf5b9fb57327ecffc20c055f61f205Affected
  • ebfa7f8ae155c9a0bb2e4038d6b5d8b14881c424 to before 58192b9ce09b0f0f86e2036683bd542130b91a98Affected
LinuxLinux
  • 5.8Affected
  • before 5.8Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 through 6.12.*Not affected
  • 6.18.16 through 6.18.*Not affected
  • 6.19.6 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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