CVE-2022-49190

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49190
In the Linux kernel, the following vulnerability has been resolved: kernel/resource: fix kfree() of bootmem memory again Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), we could get a resource allocated during boot via alloc_resource(). And it's required to release the resource using free_resource(). Howerver, many people use kfree directly which will result in kernel BUG. In order to fix this without fixing every call site, just leak a couple of bytes in such corner case.

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/0cbcc92917c5de80f15c24d033566539ad696892 Patch
https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27 Patch
https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56 Patch
https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8 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

18 Mar 2025, 20:12

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-401
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: kernel/resource: fix kfree() of bootmem memory again Desde el commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), podríamos obtener un recurso asignado durante el arranque a través de alloc_resource(). Y es necesario liberar el recurso utilizando free_resource(). Sin embargo, muchas personas utilizan kfree directamente, lo que dará como resultado un ERROR del kernel. Para solucionar esto sin reparar cada sitio de llamada, simplemente filtre un par de bytes en ese caso especial.
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/0cbcc92917c5de80f15c24d033566539ad696892 - () https://git.kernel.org/stable/c/0cbcc92917c5de80f15c24d033566539ad696892 - Patch
References () https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27 - () https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27 - Patch
References () https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56 - () https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56 - Patch
References () https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8 - () https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8 - Patch

26 Feb 2025, 07:00

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:00

Updated : 2025-03-18 20:12

NVD link : CVE-2022-49190

Mitre link : CVE-2022-49190

CVE.ORG link : CVE-2022-49190

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime