In the Linux kernel, the following vulnerability has been resolved:
net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path
If dsa_tag_8021q_setup() fails, for example due to the inability of the device to install a VLAN, the tag_8021q context of the switch will leak. Make sure it is freed on the error path.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Ubuntu | — | Upgrade linux-gcpUpgrade linux-bluefieldUpgrade linux-nvidiaUpgrade linux-gkeUpgrade linux-riscv-5.15Upgrade linux-gcp-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-realtimeUpgrade linux-kvmUpgrade linux-oracleUpgrade linux-nvidia-tegra-5.15Upgrade linux-ibmUpgrade linux-intel-iotgUpgrade linux-azure-5.15Upgrade linuxUpgrade linux-lowlatencyUpgrade linux-raspiUpgrade linux-hwe-5.15Upgrade linux-aws-5.15Upgrade linux-azureUpgrade linux-intel-iotg-5.15Upgrade linux-oracle-5.15Upgrade linux-gkeopUpgrade linux-awsUpgrade linux-azure-fde | Jan 6, 2026 | Jan 2, 2026 |
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