SECUFOCUSNOW
Home›CVE index›CVE-2022-48883
Review reviewHigh

CVE-2022-48883

Linux Linux, linux kernel

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 pare...

CVSS
7.8
EPSS
0.23%
13.8% percentile
CISA KEV
Not listed
Published
2024.08.21
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.23%
Technical severityCVSS 7.8

Vulnerability overview

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 pare...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= be98737a4faa3a0dc1781ced5bbf5c47865e29d7 < 5844a46f09f768da866d6b0ffbf1a9073266bf24, >= be98737a4faa3a0dc1781ced5bbf5c47865e29d7 < 31c70bfe58ef09fe36327ddcced9143a16e9e83d, >= 5.17, >= 5.17 < 6.1.7, 6.2
Fixed versions
6.1.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-129
CVE-2022-48883 — Linux Linux, linux kernel | SECUFOCUS NOW