Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-49805

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
01/05/2025
Last modified:
07/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()<br /> <br /> lan966x_stats_init() calls create_singlethread_workqueue() and not<br /> checked the ret value, which may return NULL. And a null-ptr-deref may<br /> happen:<br /> <br /> lan966x_stats_init()<br /> create_singlethread_workqueue() # failed, lan966x-&gt;stats_queue is NULL<br /> queue_delayed_work()<br /> queue_delayed_work_on()<br /> __queue_delayed_work() # warning here, but continue<br /> __queue_work() # access wq-&gt;flags, null-ptr-deref<br /> <br /> Check the ret value and return -ENOMEM if it is NULL.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.17 (including) 6.0.10 (excluding)
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:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools