wifi: brcmfmac: cyw: pass PMKID to firmware if present
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.54, 7.2.8
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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).
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 66f909308a7c05082919ff214a0bbe2a76aa0283 · fixed in c2cf589c7d546557ed60c43f2ec014279265dfbf; From 66f909308a7c05082919ff214a0bbe2a76aa0283 · fixed in 6fba6233e9ca7718661e53555a3961c58772c21a; From 66f909308a7c05082919ff214a0bbe2a76aa0283 · fixed in e2de8d5eb2984416affdd9559e55f37c7f1bbf47
- Linux Linux
6.16
- KernelLinux
From 6.16.0 · fixed in 6.18.54; From 6.19.0 · fixed in 7.2.8