CVE-2022-48966 Information

Description

In the Linux kernel the following vulnerability has been resolved:

net: mvneta: Prevent out of bounds read in mvneta_config_rss()

The pp->indir[0] value comes from the user. It is passed to:

if (cpu_online(pp->rxq_def))

inside the mvneta_percpu_elect() function. It needs bounds checkeding to ensure that it is not beyond the end of the cpu bitmap.

CVSS Vector

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

Reference

https://git.kernel.org/stable/c/3ceffb8f410b93553fb16fe7e84aa0d35b3ba79b https://git.kernel.org/stable/c/47a1a2f6cd5ec3a4f8a2d9bfa1e0605347cdb92c https://git.kernel.org/stable/c/5a142486a0db6b0b85031f22d69acd0cdcf8f72b https://git.kernel.org/stable/c/eec1fc21edc2bb99c9e66cf66f0b5d4d643fbb50 https://git.kernel.org/stable/c/146ebee8fcdb349d7ec0e49915e6cdafb92544ae https://git.kernel.org/stable/c/a6b30598fec84f8809f5417cde73071ca43e8471 https://git.kernel.org/stable/c/6ca0a506dddc3e1d636935eef339576b263bf3d8 https://git.kernel.org/stable/c/e8b4fc13900b8e8be48debffd0dfd391772501f7

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.1