CVE-2022-50192

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-50192
In the Linux kernel, the following vulnerability has been resolved: spi: tegra20-slink: fix UAF in tegra_slink_remove() After calling spi_unregister_master(), the refcount of master will be decrease to 0, and it will be freed in spi_controller_release(), the device data also will be freed, so it will lead a UAF when using 'tspi'. To fix this, get the master before unregister and put it when finish using it.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/415b4ce61308f24583912d887772dfcbf97f1d20 Patch
https://git.kernel.org/stable/c/67f77172644260482fdafc03b6025847944701e5 Patch
https://git.kernel.org/stable/c/7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0 Patch
https://git.kernel.org/stable/c/800c7767e05d29656713e04532823a752e57e037 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

19 Nov 2025, 12:49

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: tegra20-slink: corrección del UAF en tegra_slink_remove(). Tras llamar a spi_unregister_master(), el recuento de referencias del master se reduce a 0 y se libera en spi_controller_release(). Los datos del dispositivo también se liberan, por lo que se generará un UAF al usar 'tspi'. Para solucionar esto, obtenga el master antes de anular el registro y colóquelo al finalizar su uso.
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/415b4ce61308f24583912d887772dfcbf97f1d20 - () https://git.kernel.org/stable/c/415b4ce61308f24583912d887772dfcbf97f1d20 - Patch
References () https://git.kernel.org/stable/c/67f77172644260482fdafc03b6025847944701e5 - () https://git.kernel.org/stable/c/67f77172644260482fdafc03b6025847944701e5 - Patch
References () https://git.kernel.org/stable/c/7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0 - () https://git.kernel.org/stable/c/7e9984d183bb1e99e766c5c2b950ff21f7f7b6c0 - Patch
References () https://git.kernel.org/stable/c/800c7767e05d29656713e04532823a752e57e037 - () https://git.kernel.org/stable/c/800c7767e05d29656713e04532823a752e57e037 - Patch
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

18 Jun 2025, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-18 11:15

Updated : 2025-11-19 12:49

NVD link : CVE-2022-50192

Mitre link : CVE-2022-50192

CVE.ORG link : CVE-2022-50192

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

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