CVE-2021-47160
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: dsa: mt7530: fix VLAN traffic leaks
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 83163f7dca5684816d01c8ccf4857aa74801e7b7 | affected | git | ae389812733b1b1e8e07fcc238e41db166b5c78d | Unavailable | None listed |
| 83163f7dca5684816d01c8ccf4857aa74801e7b7 | affected | git | 4fe4e1f48ba119bdbc7c897c83b04ba0d08f5488 | Unavailable | None listed |
| 83163f7dca5684816d01c8ccf4857aa74801e7b7 | affected | git | b91117b66fe875723a4e79ec6263526fffdb44d2 | Unavailable | None listed |
| 83163f7dca5684816d01c8ccf4857aa74801e7b7 | affected | git | 82ae35b6c14feae5f216913d5b433e143c756d4e | Unavailable | None listed |
| 83163f7dca5684816d01c8ccf4857aa74801e7b7 | affected | git | 474a2ddaa192777522a7499784f1d60691cd831a | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.16 | Unavailable | None listed |
| 4.19.193 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.124 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.42 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.12.9 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |