CVE-2026-98350 is a vulnerability in Linux Kernel
Published on October 6, 2026
wifi: brcmfmac: cyw: pass PMKID to firmware if present
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).
Products Associated with CVE-2026-98350
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Affected Versions
Linux:- Version 66f909308a7c05082919ff214a0bbe2a76aa0283 and below c2cf589c7d546557ed60c43f2ec014279265dfbf is affected.
- Version 66f909308a7c05082919ff214a0bbe2a76aa0283 and below 6fba6233e9ca7718661e53555a3961c58772c21a is affected.
- Version 66f909308a7c05082919ff214a0bbe2a76aa0283 and below e2de8d5eb2984416affdd9559e55f37c7f1bbf47 is affected.
- Version 6.16 is affected.
- Before 6.16 is unaffected.
- Version 6.18.54, <= 6.18.* is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.