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.
https://www.debian.org/security/2022/dsa-5173
https://www.debian.org/security/2022/dsa-5161
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/dma/swiotlb.c?h=v5.17-rc8&id=aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13
Source: Mitre, NVD
Published: 2022-03-23
Updated: 2024-11-21
Base Score: 2.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
Severity: Low
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
EPSS: 0.00008