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)
Core 4
Core References
Exploit, Mailing List, Third Party Advisory x_refsource_misc
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/dma/swiotlb.c?h=v5.17-rc8&id=aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2022/dsa-5161
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2022/dsa-5173
Scores
CVSS v3
5.5
EPSS
0.0002
EPSS Percentile
3.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-401
CWE-200
Status
published
Products (5)
debian/debian_linux
9.0
debian/debian_linux
10.0
debian/debian_linux
11.0
linux/linux_kernel
5.17 (8 CPE variants)
linux/linux_kernel
< 5.16
Published
Mar 23, 2022
Tracked Since
Feb 18, 2026