CVE-2026-98350

Summary

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).

Affected Software

VendorProductVersion RangeStatus
LinuxLinux66f909308a7c05082919ff214a0bbe2a76aa0283 < c2cf589c7d546557ed60c43f2ec014279265dfbfaffected
LinuxLinux66f909308a7c05082919ff214a0bbe2a76aa0283 < 6fba6233e9ca7718661e53555a3961c58772c21aaffected
LinuxLinux66f909308a7c05082919ff214a0bbe2a76aa0283 < e2de8d5eb2984416affdd9559e55f37c7f1bbf47affected
LinuxLinux6.16affected
LinuxLinux0 < 6.16unaffected
LinuxLinux6.18.54 <= 6.18.*unaffected
LinuxLinux7.2.8 <= 7.2.*unaffected
LinuxLinux7.3-rc4 <= *unaffected

Weaknesses

References