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.
| 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-hwe-5.15Upgrade linux-azureUpgrade linux-aws-5.4Upgrade linux-aws-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-ibm-5.4Upgrade linux-oracleUpgrade linux-nvidiaUpgrade linuxUpgrade linux-azure-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-kvmUpgrade linux-ibm-5.15Upgrade linux-oracle-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-nvidia-tegraUpgrade linux-gkeopUpgrade linux-gkeUpgrade linux-lowlatencyUpgrade linux-azure-fipsUpgrade linux-realtimeUpgrade linux-azure-fde-5.15Upgrade linux-raspiUpgrade linux-fipsUpgrade linux-oracle-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azure-fdeUpgrade linux-awsUpgrade linux-ibmUpgrade linux-raspi-5.4Upgrade linux-aws-fipsUpgrade linux-iotUpgrade linux-gcpUpgrade linux-bluefieldUpgrade linux-gcp-5.4Upgrade linux-nvidia-tegra-igxUpgrade linux-gcp-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-azure-5.4Upgrade linux-hwe-5.4Upgrade linux-gcp-fipsUpgrade linux-riscv-5.15Upgrade linux-intel-iotg | 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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