PT-2025-40669 · Linux+3 · Linux Kernel+3

Published 2023-02-21 · Updated 2025-12-04 · CVE-2022-50482

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel’s iommu/vt-d component related to memory management during the initialization of Direct Memory Access Remapping Services (DMARS). Specifically, the issue involves incomplete cleanup of si domain memory within the init dmars() function if an error occurs during initialization. This can lead to a memory leak and potentially a system crash (splat) due to issues with the kernel memory cache (kmem cache destroy()).

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

ALSA-2025_16880

CESA-2023_0832

CESA-2023_2951

CVE-2022-50482

OESA-2025-2659

RHSA-2023:0832

RHSA-2023:2951

RHSA-2023:6583

RHSA-2023_0832

RHSA-2023_2951

RHSA-2023_6583

SUSE-SU-2025:4111-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4320-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

References · 478

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50482.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-50489 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50484 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-39782 · Security Note
• https://osv.dev/vulnerability/OESA-2025-2659 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53733 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53641 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50482 · Vendor Advisory
• https://git.kernel.org/stable/c/749bea542b67513e99240dc58bbfc099e842d508 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53344 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50482 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53676 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50435 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4111-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50349 · Security Note