In the Linux kernel, the following vulnerability has been resolved:
llc: reserve device headroom for allocated frames
llc_alloc_frame() reserves link-layer headroom using the device type. This is insufficient for stacked Ethernet devices such as VLAN devices, where vlan_dev_hard_header() pushes a VLAN header before the lower device's Ethernet header. An LLC response on such a device can therefore underflow skb headroom in eth_header().
Use LL_RESERVED_SPACE() to account for the device's actual required headroom while preserving the existing LLC device-type check.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Oct 28, 2026 | Oct 18, 2026 |
| Ubuntu | — | Upgrade linux-ibm-5.15Upgrade linux-realtimeUpgrade linux-bluefieldUpgrade linux-gkeUpgrade linux-ibmUpgrade linux-hwe-7.0Upgrade linux-oem-7.0Upgrade linux-gcp-5.15Upgrade linux-intel-iotgUpgrade linux-intel-iotg-5.15Upgrade linux-hwe-5.15Upgrade linux-nvidiaUpgrade linux-lowlatency-hwe-5.15Upgrade linux-oracleUpgrade linux-fipsUpgrade linux-riscv-5.15Upgrade linux-aws-fipsUpgrade linux-kvmUpgrade linux-azureUpgrade linux-oracle-5.15Upgrade linux-azure-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-gcp-fipsUpgrade linux-aws-5.15Upgrade linux-gcpUpgrade linux-lowlatencyUpgrade linux-nvidia-tegraUpgrade linux-riscv-7.0Upgrade linux-azure-fipsUpgrade linux-awsUpgrade linux-nvidia-tegra-igxUpgrade linux-nvidia-tegra-5.15Upgrade linuxUpgrade linux-azure-fde-5.15Upgrade linux-riscvUpgrade linux-gkeop | Nov 3, 2026 | Oct 18, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 22, 2026 | Oct 18, 2026 |
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