Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
83163f7dca5684816d01c8ccf4857aa74801e7b7 to < ae389812733b1b1e8e07fcc238e41db166b5c78daffected83163f7dca5684816d01c8ccf4857aa74801e7b7 to < 4fe4e1f48ba119bdbc7c897c83b04ba0d08f5488affected83163f7dca5684816d01c8ccf4857aa74801e7b7 to < b91117b66fe875723a4e79ec6263526fffdb44d2affected83163f7dca5684816d01c8ccf4857aa74801e7b7 to < 82ae35b6c14feae5f216913d5b433e143c756d4eaffected83163f7dca5684816d01c8ccf4857aa74801e7b7 to < 474a2ddaa192777522a7499784f1d60691cd831aaffected
Linux Linux
Default version status: affected
4.16affected0 to < 4.16unaffected4.19.193 to ≤ 4.19.*unaffected5.4.124 to ≤ 5.4.*unaffected5.10.42 to ≤ 5.10.*unaffected5.12.9 to ≤ 5.12.*unaffected5.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/ae389812733b1b1e8e07fcc238e41db166b5c78d ↗
- https://git.kernel.org/stable/c/4fe4e1f48ba119bdbc7c897c83b04ba0d08f5488 ↗
- https://git.kernel.org/stable/c/b91117b66fe875723a4e79ec6263526fffdb44d2 ↗
- https://git.kernel.org/stable/c/82ae35b6c14feae5f216913d5b433e143c756d4e ↗
- https://git.kernel.org/stable/c/474a2ddaa192777522a7499784f1d60691cd831a ↗