CVE-2022-48748

2024-06-2000:00:00

ubuntu.com

linux kernel

net

bridge

vlan

memory leak

cve-2022-48748

security vulnerability

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

JSON

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.