CVE-2020-36784

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-36784
In the Linux kernel, the following vulnerability has been resolved: i2c: cadence: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in functions cdns_i2c_master_xfer and cdns_reg_slave. However, pm_runtime_get_sync will increment pm usage counter even failed. Forgetting to putting operation will result in a reference leak here. Replace it with pm_runtime_resume_and_get to keep usage counter balanced.

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/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 Patch
https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 Patch
https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 Patch
https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 Patch
https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 Patch
https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 Patch
https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 Patch
https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 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

06 Dec 2024, 17:37

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE NVD-CWE-Other
References () https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 - () https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 - Patch
References () https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 - () https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 - Patch
References () https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 - () https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 - Patch
References () https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 - () https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 - Patch

21 Nov 2024, 05:30

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 - () https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 -
References () https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 - () https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 -
References () https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 - () https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 -
References () https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 - () https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: i2c: cadencia: corrige la fuga de referencia cuando falla pm_runtime_get_sync No se espera que el recuento de referencias de PM aumente al regresar en las funciones cdns_i2c_master_xfer y cdns_reg_slave. Sin embargo, pm_runtime_get_sync incrementará el contador de uso de pm incluso si falla. Olvidarse de poner en funcionamiento resultará en una fuga de referencia aquí. Reemplácelo con pm_runtime_resume_and_get para mantener el contador de uso equilibrado.

28 Feb 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-28 09:15

Updated : 2024-12-06 17:37

NVD link : CVE-2020-36784

Mitre link : CVE-2020-36784

CVE.ORG link : CVE-2020-36784

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other