PT-2025-43086 · Linux+1 · Linux Kernel+1

Published 2022-11-22 · Updated 2025-12-04 · CVE-2022-50576

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:N/A:C

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

Description The Linux kernel contains a resource leak in the pch request dma() function related to PCI device reference counting. The pci get slot() function increases the reference count of a PCI device, requiring the caller to decrement it using pci dev put(). This decrement was missing in both the normal and error paths of pch request dma(), leading to a PCI device reference count leak. The dma dev variable is used solely for filtering within the filter() function, allowing pci dev put() to be called before exiting pch request dma().

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

Exploit

Weakness Enumeration

CWE-911

CWE-664

Related Identifiers

BDU:2026-03850

CVE-2022-50576

SUSE-SU-2025:4111-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4320-1

Affected Products

Linux Kernel

Suse

References · 458

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50576.json · Exploit
• https://cve.org/CVERecord?id=CVE-2022-50576 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4111-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50576 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50576 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50576 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4320-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50576 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4149-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50576 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50576 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4139-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03850 · Security Note
• https://suse.com/security/cve/CVE-2023-53578 · Note
• https://bugzilla.suse.com/1251230 · Note