CVE-2022-50157

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-50157
In the Linux kernel, the following vulnerability has been resolved: PCI: microchip: Fix refcount leak in mc_pcie_init_irq_domains() of_get_next_child() returns a node pointer with refcount incremented, so we should use of_node_put() on it when we don't need it anymore. mc_pcie_init_irq_domains() only calls of_node_put() in the normal path, missing it in some error paths. Add missing of_node_put() to avoid refcount leak.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/6cd5f93b5c6a66c68a91dbc604a78207252ecd43 Patch
https://git.kernel.org/stable/c/880ece912b958a0c92cc0baa8e906fb9b49a4b53 Patch
https://git.kernel.org/stable/c/c0ad5c7e68d10f6f8ffb0f4329e3c19404fbca58 Patch
https://git.kernel.org/stable/c/f030304fdeb87ec8f1b518c73703214aec6cc24a Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

25 Nov 2025, 15:18

Type Values Removed Values Added
CWE NVD-CWE-Other
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/6cd5f93b5c6a66c68a91dbc604a78207252ecd43 - () https://git.kernel.org/stable/c/6cd5f93b5c6a66c68a91dbc604a78207252ecd43 - Patch
References () https://git.kernel.org/stable/c/880ece912b958a0c92cc0baa8e906fb9b49a4b53 - () https://git.kernel.org/stable/c/880ece912b958a0c92cc0baa8e906fb9b49a4b53 - Patch
References () https://git.kernel.org/stable/c/c0ad5c7e68d10f6f8ffb0f4329e3c19404fbca58 - () https://git.kernel.org/stable/c/c0ad5c7e68d10f6f8ffb0f4329e3c19404fbca58 - Patch
References () https://git.kernel.org/stable/c/f030304fdeb87ec8f1b518c73703214aec6cc24a - () https://git.kernel.org/stable/c/f030304fdeb87ec8f1b518c73703214aec6cc24a - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: microchip: Se corrige la fuga de recuento de referencias en mc_pcie_init_irq_domains(). of_get_next_child() devuelve un puntero de nodo con el recuento de referencias incrementado, por lo que debemos usar of_node_put() cuando ya no lo necesitemos. mc_pcie_init_irq_domains() solo llama a of_node_put() en la ruta normal, y no lo detecta en algunas rutas con errores. Se añade la falta de of_node_put() para evitar la fuga de recuento de referencias.
First Time Linux
Linux linux Kernel

18 Jun 2025, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-18 11:15

Updated : 2025-11-25 15:18

NVD link : CVE-2022-50157

Mitre link : CVE-2022-50157

CVE.ORG link : CVE-2022-50157

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other