vulnerability

Debian: CVE-2022-48883: linux -- security update

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:P/I:P/A:C)
Published
Aug 22, 2024
Added
Aug 22, 2024
Modified
Feb 20, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent

A user is able to configure an arbitrary number of rx queues when
creating an interface via netlink. This doesn't work for child PKEY
interfaces because the child interface uses the parent receive channels.

Although the child shares the parent's receive channels, the number of
rx queues is important for the channel_stats array: the parent's rx
channel index is used to access the child's channel_stats. So the array
has to be at least as large as the parent's rx queue size for the
counting to work correctly and to prevent out of bound accesses.

This patch checks for the mentioned scenario and returns an error when
trying to create the interface. The error is propagated to the user.

Solution

debian-upgrade-linux
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.