linux: In the Linux kernel, the following vulnerability has been resolved: net: dsa: mt7530: fix VLAN traffic leaks PCR_MA...
CVE-2021-47160 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47160, released March 25, 2024. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.14.6-1 | DEBIAN-CVE-2021-47160 | Mar 25, 2024 |
| linux · Debian 13.5 (trixie) | 5.14.6-1 | DEBIAN-CVE-2021-47160 | Mar 25, 2024 |
| linux · Debian 14 | 5.14.6-1 | DEBIAN-CVE-2021-47160 | Mar 25, 2024 |
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