CVE-2022-49806

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49806
In the Linux kernel, the following vulnerability has been resolved: net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start() sparx_stats_init() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: sparx_stats_init() create_singlethread_workqueue() # failed, sparx5->stats_queue is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL. So as sparx5_start().

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/456327e565dc49d18b2f595f39f47df8a36f1057 Patch
https://git.kernel.org/stable/c/639f5d006e36bb303f525d9479448c412b720c39 Patch
https://git.kernel.org/stable/c/80e590aeb132887102c3fa79d99b338f099dc952 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:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
History

07 Nov 2025, 19:20

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
CWE CWE-476
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/456327e565dc49d18b2f595f39f47df8a36f1057 - () https://git.kernel.org/stable/c/456327e565dc49d18b2f595f39f47df8a36f1057 - Patch
References () https://git.kernel.org/stable/c/639f5d006e36bb303f525d9479448c412b720c39 - () https://git.kernel.org/stable/c/639f5d006e36bb303f525d9479448c412b720c39 - Patch
References () https://git.kernel.org/stable/c/80e590aeb132887102c3fa79d99b338f099dc952 - () https://git.kernel.org/stable/c/80e590aeb132887102c3fa79d99b338f099dc952 - Patch

02 May 2025, 13:53

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: microchip: sparx5: Se corrige un posible null-ptr-deref en sparx_stats_init() y sparx5_start(). sparx_stats_init() llama a create_singlethread_workqueue() y no comprueba el valor ret, lo que puede devolver NULL. Y puede ocurrir un null-ptr-deref: sparx_stats_init() create_singlethread_workqueue() # falló, sparx5->stats_queue es NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # advertencia aquí, pero continúe __queue_work() # acceso a wq->flags, null-ptr-deref Compruebe el valor ret y devuelva -ENOMEM si es NULL. Así como sparx5_start().

01 May 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-01 15:16

Updated : 2025-11-07 19:20

NVD link : CVE-2022-49806

Mitre link : CVE-2022-49806

CVE.ORG link : CVE-2022-49806

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference