CVE-2022-48748 Information

Description

In the Linux kernel the following vulnerability has been resolved:

net: bridge: vlan: fix memory leak in __allowed_ingress

When using per-vlan state if vlan snooping and stats are disabled untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false.

Reference

https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797 https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098 https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511 https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff