CVE-2020-36779

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-36779
In the Linux kernel, the following vulnerability has been resolved: i2c: stm32f7: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in these stm32f7_i2c_xx serious functions. However, pm_runtime_get_sync will increment the PM reference count 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/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b Patch
https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166 Patch
https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0 Patch
https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4 Patch
https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b Patch
https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166 Patch
https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0 Patch
https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4 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, 16:14

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/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b - () https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b - Patch
References () https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166 - () https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166 - Patch
References () https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0 - () https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0 - Patch
References () https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4 - () https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4 - Patch

21 Nov 2024, 05:30

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b - () https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b -
References () https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166 - () https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166 -
References () https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0 - () https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0 -
References () https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4 - () https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4 -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: i2c: stm32f7: 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 estas funciones serias stm32f7_i2c_xx. Sin embargo, pm_runtime_get_sync incrementará el recuento de referencias 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 16:14

NVD link : CVE-2020-36779

Mitre link : CVE-2020-36779

CVE.ORG link : CVE-2020-36779

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other