PT-2025-40739 · Linux+3 · Linux Kernel+3

Published 2022-11-19 · Updated 2026-02-05 · CVE-2022-50505

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 The Linux kernel contains an issue related to a PCI device reference count leak within the ppr notifier() function in the iommu/amd module. The pci get domain bus and slot() function increments the reference count of a PCI device. To prevent a reference count leak, the caller must decrement this reference count by calling pci dev put() before returning from ppr notifier(). This issue could potentially lead to resource exhaustion or other unexpected behavior.

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:2026-04058

CVE-2022-50505

OESA-2025-2553

RHSA-2023:6583

RHSA-2023_6583

SUSE-SU-2025:4111-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4189-1

SUSE-SU-2025:4320-1

Affected Products

Amd Iommu

Linux Kernel

Red Hat

Suse

References · 649

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50505.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53453 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50505 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50405 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4189-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53384 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50505 · Vendor Advisory
• https://git.kernel.org/stable/c/6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50494 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53604 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4111-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50505 · Vendor Advisory
• https://git.kernel.org/stable/c/efd50c65fd1cdef63eb58825f3fe72496443764c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-53168 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50505 · Vendor Advisory