CVE-2021-47184

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47184
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL ptr dereference on VSI filter sync Remove the reason of null pointer dereference in sync VSI filters. Added new I40E_VSI_RELEASING flag to signalize deleting and releasing of VSI resources to sync this thread with sync filters subtask. Without this patch it is possible to start update the VSI filter list after VSI is removed, that's causing a kernel oops.

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/37d9e304acd903a445df8208b8a13d707902dea6 Patch
https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089 Patch
https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d Patch
https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c Patch
https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890 Patch
https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178 Patch
https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6 Patch
https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089 Patch
https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d Patch
https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c Patch
https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890 Patch
https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
History

14 Jan 2025, 16:41

Type Values Removed Values Added
CWE CWE-476
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6 - () https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6 - Patch
References () https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089 - () https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089 - Patch
References () https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d - () https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d - Patch
References () https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c - () https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c - Patch
References () https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890 - () https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890 - Patch
References () https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178 - () https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178 - Patch

21 Nov 2024, 06:35

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6 - () https://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6 -
References () https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089 - () https://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089 -
References () https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d - () https://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d -
References () https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c - () https://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c -
References () https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890 - () https://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890 -
References () https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178 - () https://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178 -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i40e: Corregir la desreferencia de puntero nulo en la sincronización de filtros VSI Eliminar el motivo de la desreferencia de puntero nulo en los filtros VSI de sincronización. Se ha añadido el nuevo indicador I40E_VSI_RELEASING para señalar la eliminación y liberación de recursos VSI para sincronizar este hilo con la subtarea de filtros de sincronización. Sin este parche, es posible comenzar a actualizar la lista de filtros VSI después de que se elimine VSI, lo que provoca un error en el kernel.

10 Apr 2024, 19:49

Type Values Removed Values Added
New CVE
Information

Published : 2024-04-10 19:15

Updated : 2025-01-14 16:41

NVD link : CVE-2021-47184

Mitre link : CVE-2021-47184

CVE.ORG link : CVE-2021-47184

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference