CVE-2026-98350 PUBLISHED

wifi: brcmfmac: cyw: pass PMKID to firmware if present

Assigner: Linux
Reserved: 25.09.2026 Published: 06.10.2026 Updated: 06.10.2026

In the Linux kernel, the following vulnerability has been resolved:

wifi: brcmfmac: cyw: pass PMKID to firmware if present

Zero out auth_status on initialization. Otherwise, garbage will leak from the stack to the firmware (when ssid is less than 32 bytes and/or when params->pmkid is set). Then, pass the params->pmkid to the firmware (without it, the firmware caches a garbage PMKID on successful authentication and denies a subsequent association request that includes the PMKID).

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 66f909308a7c05082919ff214a0bbe2a76aa0283 to c2cf589c7d546557ed60c43f2ec014279265dfbf (excl.)
  • affected from 66f909308a7c05082919ff214a0bbe2a76aa0283 to 6fba6233e9ca7718661e53555a3961c58772c21a (excl.)
  • affected from 66f909308a7c05082919ff214a0bbe2a76aa0283 to e2de8d5eb2984416affdd9559e55f37c7f1bbf47 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.16 is affected
  • unaffected from 0 to 6.16 (excl.)
  • unaffected from 6.18.54 to 6.18.* (incl.)
  • unaffected from 7.2.8 to 7.2.* (incl.)
  • unaffected from 7.3-rc4 to * (incl.)

References