CVE-2025-21659

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-21659
In the Linux kernel, the following vulnerability has been resolved: netdev: prevent accessing NAPI instances from another namespace The NAPI IDs were not fully exposed to user space prior to the netlink API, so they were never namespaced. The netlink API must ensure that at the very least NAPI instance belongs to the same netns as the owner of the genl sock. napi_by_id() can become static now, but it needs to move because of dev_get_by_napi_id().

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/b683ba0df11ff563cc237eb1b74d6adfa77226bf Patch
https://git.kernel.org/stable/c/d1cacd74776895f6435941f86a1130e58f6dd226 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:*
History

15 Oct 2025, 13:47

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/b683ba0df11ff563cc237eb1b74d6adfa77226bf - () https://git.kernel.org/stable/c/b683ba0df11ff563cc237eb1b74d6adfa77226bf - Patch
References () https://git.kernel.org/stable/c/d1cacd74776895f6435941f86a1130e58f6dd226 - () https://git.kernel.org/stable/c/d1cacd74776895f6435941f86a1130e58f6dd226 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netdev: evitar el acceso a instancias NAPI desde otro espacio de nombres Los identificadores NAPI no estaban completamente expuestos al espacio de usuario antes de la API netlink, por lo que nunca se asignaron espacios de nombres. La API netlink debe garantizar que, como mínimo, la instancia NAPI pertenezca a la misma red que el propietario del calcetín genl. napi_by_id() ahora puede volverse estático, pero debe moverse debido a dev_get_by_napi_id().
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux
Linux linux Kernel
CWE NVD-CWE-noinfo

21 Jan 2025, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-01-21 13:15

Updated : 2025-10-15 13:47

NVD link : CVE-2025-21659

Mitre link : CVE-2025-21659

CVE.ORG link : CVE-2025-21659

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo