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In the Linux kernel, the following vulnerability has been resolved:
net: dsa: mt7530: fix VLAN traffic leaks
PCR_MATRIX field was set to all 1's when VLAN filtering is enabled, but was not reset when it is disabled, which may cause traffic leaks:
ip link add br0 type bridge vlan_filtering 1 ip link add br1 type bridge vlan_filtering 1 ip link set swp0 master br0 ip link set swp1 master br1 ip link set br0 type bridge vlan_filtering 0 ip link set br1 type bridge vlan_filtering 0 # traffic in br0 and br1 will start leaking to each other
As port_bridge_{add,del} have set up PCR_MATRIX properly, remove the PCR_MATRIX write from mt7530_port_set_vlan_aware.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Mar 25, 2024 |
| Suse | — | Upgrade kernel-zfcpdumpUpgrade kernel-symsUpgrade kernel-macrosUpgrade kernel-sourceUpgrade kernel-develUpgrade reiserfs-kmp-defaultUpgrade kernel-64kb-develUpgrade kernel-default-develUpgrade kernel-64kbUpgrade kernel-obs-buildUpgrade kernel-preemptUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-default-baseUpgrade kernel-preempt-devel | Aug 9, 2024 | Mar 25, 2024 |
| Ubuntu | — | Upgrade linux-oracleUpgrade linux-gcp-5.4Upgrade linux-hwe-5.4Upgrade linux-gcp-fipsUpgrade linux-kvmUpgrade linux-azure-fipsUpgrade linux-fipsUpgrade linux-azure-5.4Upgrade linux-aws-fipsUpgrade linux-gkeopUpgrade linux-oracle-5.4Upgrade linux-awsUpgrade linuxUpgrade linux-bluefieldUpgrade linux-raspi-5.4Upgrade linux-azureUpgrade linux-raspiUpgrade linux-gcpUpgrade linux-aws-5.4 | Nov 19, 2024 | Mar 25, 2024 |
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