Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: 8021q: delete cleared egress QoS mappings vlan_dev_set_egress_priority() currently keeps cleared egress priority mappings in the hash as tombstones. Repeated set/clear cycles with distinct skb priorities therefore accumulate mapping nodes until device teardown and leak memory. Delete mappings when vlan_prio is cleared instead of keeping tombstones. Now that the egress mapping lists are RCU protected, the node can be unlinked safely and freed after a grace period.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a52e122c9e4d56ad9a03b32c915a199276d989c3; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7dddc74af369478ba7f9bc136d0fc1dc4570cb66 |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 7.0.7 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.