CVE-2022-0854

MEDIUM

Linux Kernel < 5.16 - Information Disclosure

Title source: rule

Description

A memory leak flaw was found in the Linux kernel’s DMA subsystem, in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space.

References (4)

[Exploit, Mailing List, Third Party Advisory] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/dma/swiotlb.c?h=v5.17-rc8&id=aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

[Third Party Advisory] https://www.debian.org/security/2022/dsa-5161

[Third Party Advisory] https://www.debian.org/security/2022/dsa-5173

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 2.5%

Attack Vector LOCAL

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

Classification

CWE

CWE-401 CWE-200

Status published

Affected Products (12)

linux/linux_kernel < 5.16

linux/linux_kernel

debian/debian_linux

Timeline

Published Mar 23, 2022

Tracked Since Feb 18, 2026