CVE-2022-49653

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  2. Vulnerabilities (CVE)
  3. CVE-2022-49653
In the Linux kernel, the following vulnerability has been resolved: i2c: piix4: Fix a memory leak in the EFCH MMIO support The recently added support for EFCH MMIO regions introduced a memory leak in that code path. The leak is caused by the fact that release_resource() merely removes the resource from the tree but does not free its memory. We need to call release_mem_region() instead, which does free the memory. As a nice side effect, this brings back some symmetry between the legacy and MMIO paths.

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/8ad59b397f86a4d8014966fdc0552095a0c4fb2b Patch
https://git.kernel.org/stable/c/a3263e4cf8265f0c9eb0ed8a9b50f132c7a42e19 Patch
https://git.kernel.org/stable/c/d2bf1a6480e8d44658a8ac3bdcec081238873212 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:5.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
History

11 Mar 2025, 22:25

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
CWE CWE-401
CPE cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/8ad59b397f86a4d8014966fdc0552095a0c4fb2b - () https://git.kernel.org/stable/c/8ad59b397f86a4d8014966fdc0552095a0c4fb2b - Patch
References () https://git.kernel.org/stable/c/a3263e4cf8265f0c9eb0ed8a9b50f132c7a42e19 - () https://git.kernel.org/stable/c/a3263e4cf8265f0c9eb0ed8a9b50f132c7a42e19 - Patch
References () https://git.kernel.org/stable/c/d2bf1a6480e8d44658a8ac3bdcec081238873212 - () https://git.kernel.org/stable/c/d2bf1a6480e8d44658a8ac3bdcec081238873212 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i2c: piix4: Se corrige una pérdida de memoria en el soporte EFCH MMIO El soporte recientemente agregado para regiones EFCH MMIO introdujo una pérdida de memoria en esa ruta de código. La pérdida se debe al hecho de que release_resource() simplemente elimina el recurso del árbol pero no libera su memoria. En su lugar, debemos llamar a release_mem_region(), que libera la memoria. Como un buen efecto secundario, esto recupera cierta simetría entre las rutas heredadas y MMIO.

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-03-11 22:25

NVD link : CVE-2022-49653

Mitre link : CVE-2022-49653

CVE.ORG link : CVE-2022-49653

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime