CVE-2022-48904

MEDIUM

Linux Kernel 5.12-5.15.26 - Use-After-Free in IOMMU Page Table Handling

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix I/O page table memory leak The current logic updates the I/O page table mode for the domain before calling the logic to free memory used for the page table. This results in IOMMU page table memory leak, and can be observed when launching VM w/ pass-through devices. Fix by freeing the memory used for page table before updating the mode.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/378e2fe1eb58d5c2ed55c8fe5e11f9db5033cdd6

Patch

https://git.kernel.org/stable/c/c78627f757e37c2cf386b59c700c4e1574988597

Patch

https://git.kernel.org/stable/c/6b0b2d9a6a308bcd9300c2d83000a82812c56cea

Scores

CVSS v3 5.5

EPSS 0.0021

EPSS Percentile 11.0%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-401

Status published

Products (12)

linux/Kernel 5.12.0 - 5.15.27linux

linux/Kernel 5.16.0 - 5.16.13linux

Linux/Linux < 5.12

Linux/Linux 5.12

Linux/Linux 5.15.27 - 5.15.*

Linux/Linux 5.16.13 - 5.16.*

Linux/Linux 5.17

Linux/Linux e42ba0633064ef23eb1c8c21edf96bac1541bd4b - 378e2fe1eb58d5c2ed55c8fe5e11f9db5033cdd6

Linux/Linux e42ba0633064ef23eb1c8c21edf96bac1541bd4b - 6b0b2d9a6a308bcd9300c2d83000a82812c56cea

Linux/Linux e42ba0633064ef23eb1c8c21edf96bac1541bd4b - c78627f757e37c2cf386b59c700c4e1574988597

... and 2 more

Published Aug 22, 2024

Tracked Since Feb 18, 2026