In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex
Apparently the hex passphrase mechanism does not work on newer chips/firmware (e.g. BCM4387). It seems there was a simple way of passing it in binary all along, so use that and avoid the hexification.
OpenBSD has been doing it like this from the beginning, so this should work on all chips.
Also clear the structure before setting the PMK. This was leaking uninitialized stack contents to the device.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Oct 24, 2025 | Oct 24, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 22, 2025 |
| Ubuntu | — | Upgrade linux-intel-iot-realtimeUpgrade linux-nvidia-tegra-igxUpgrade linux-bluefieldUpgrade linux-iotUpgrade linux-hwe-5.4Upgrade linux-riscv-5.15Upgrade linux-gcp-fipsUpgrade linux-azure-5.4Upgrade linux-intel-iotgUpgrade linux-gcpUpgrade linux-gcp-5.4Upgrade linux-aws-fipsUpgrade linux-raspi-5.4Upgrade linux-ibmUpgrade linux-gcp-5.15Upgrade linux-awsUpgrade linux-oracleUpgrade linux-nvidiaUpgrade linux-ibm-5.4Upgrade linux-oracle-5.4Upgrade linux-hwe-5.15Upgrade linux-nvidia-tegraUpgrade linux-nvidia-tegra-5.15Upgrade linuxUpgrade linux-intel-iotg-5.15Upgrade linux-kvmUpgrade linux-gkeopUpgrade linux-azure-5.15Upgrade linux-ibm-5.15Upgrade linux-aws-5.4Upgrade linux-oracle-5.15Upgrade linux-aws-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-raspiUpgrade linux-gkeUpgrade linux-azure-fde-5.15Upgrade linux-lowlatencyUpgrade linux-realtimeUpgrade linux-fipsUpgrade linux-azure-fipsUpgrade linux-azure | Oct 28, 2025 | Oct 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Oct 22, 2025 |
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