PT-2025-37620 · Linux+4 · Linux Kernel+4

Published 2022-11-24 · Updated 2025-10-23 · CVE-2022-50318

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 reference count leak exists in the hswep has limit sbox() function within the perf/x86/intel/uncore module of the Linux kernel. The pci get device() function increases the reference count for the returned device (dev), but the reference count is not decreased, leading to a leak. The issue occurs because pci dev put() was not called after pci read config dword().

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

Exploit

Weakness Enumeration

CWE-911

Related Identifiers

BDU:2026-05970

CESA-2023_2951

CESA-2023_7077

CVE-2022-50318

RHSA-2023:2458

RHSA-2023:2951

RHSA-2023:4789

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_2458

RHSA-2023_2951

RHSA-2023_6583

RHSA-2023_7077

RHSA-2024:2394

RHSA-2024_2394

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

References · 870

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50318.json · Exploit
• https://git.kernel.org/stable/c/48f32b9a74e2ac8e854bb87bfefdbc745125a123 · Patch
• https://git.kernel.org/stable/c/5a96c10a56037db006ba6769307a9731cf6073be · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50318 · Vendor Advisory
• https://git.kernel.org/stable/c/3485f197518061371568f842405159aa9e4df551 · Patch
• https://git.kernel.org/stable/c/e293263248f25c6b8aa1caf7c1103d40aa03311e · Patch
• https://git.kernel.org/stable/c/1ff9dd6e7071a561f803135c1d684b13c7a7d01d · Patch
• https://ubuntu.com/security/CVE-2022-50318 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50318 · Security Note
• https://git.kernel.org/stable/c/bd66877c0b3b42eed0ecee0bd2a2a505c1e54177 · Patch
• https://osv.dev/vulnerability/CVE-2022-50318 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://git.kernel.org/stable/c/c0539d5d474ee6fa4ebc41f927a0f98f81244f25 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50318 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50318 · Vendor Advisory