CVE-2022-48904

iommu/amd: Fix I/O page table memory leak

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

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.

The SUSE Linux Enterprise 15 SP5 Azure kernel was updated to receive various security bug fixes.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-08-21 CVE Reserved
2024-08-22 CVE Published
2025-05-04 CVE Updated
2025-06-18 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (6)

URL	Tag	Source
https://git.kernel.org/stable/c/e42ba0633064ef23eb1c8c21edf96bac1541bd4b	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/378e2fe1eb58d5c2ed55c8fe5e11f9db5033cdd6	2022-03-08
https://git.kernel.org/stable/c/c78627f757e37c2cf386b59c700c4e1574988597	2022-03-08
https://git.kernel.org/stable/c/6b0b2d9a6a308bcd9300c2d83000a82812c56cea	2022-02-14

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2022-48904	2022-05-10
https://bugzilla.redhat.com/show_bug.cgi?id=2307157	2022-05-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.12 < 5.15.27 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 5.15.27"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.12 < 5.16.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 5.16.13"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.12 < 5.17 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 5.17"		en		Affected