CVE-2022-48873

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-48873
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Don't remove map on creater_process and device_release Do not remove the map from the list on error path in fastrpc_init_create_process, instead call fastrpc_map_put, to avoid use-after-free. Do not remove it on fastrpc_device_release either, call fastrpc_map_put instead. The fastrpc_free_map is the only proper place to remove the map. This is called only after the reference count is 0.

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/193cd853145b63e670bd73740250983af1475330 Patch
https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8 Patch
https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054b Patch
https://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7 Patch
https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
History

06 Sep 2024, 14:44

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc: fastrpc: no elimine el mapa en creater_process y device_release. No elimine el mapa de la lista en la ruta de error en fastrpc_init_create_process; en su lugar, llame a fastrpc_map_put para evitar el use-after-free. Tampoco lo elimine en fastrpc_device_release; en su lugar, llame a fastrpc_map_put. fastrpc_free_map es el único lugar adecuado para eliminar el mapa. Esto se llama solo después de que el recuento de referencias sea 0.
References () https://git.kernel.org/stable/c/193cd853145b63e670bd73740250983af1475330 - () https://git.kernel.org/stable/c/193cd853145b63e670bd73740250983af1475330 - Patch
References () https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8 - () https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8 - Patch
References () https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054b - () https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054b - Patch
References () https://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7 - () https://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7 - Patch
References () https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15 - () https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15 - Patch

21 Aug 2024, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-21 07:15

Updated : 2024-09-06 14:44

NVD link : CVE-2022-48873

Mitre link : CVE-2022-48873

CVE.ORG link : CVE-2022-48873

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free