CVE-2022-48816

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

16/07/2024

Last modified:

06/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.

Impact

Vector 3.x

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

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x

4.70

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.10.67 (including)	5.11 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.13.19 (including)	5.16.10 (excluding)
cpe:2.3:o:linux:linux_kernel:5.17:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.17:rc2::::::
cpe:2.3:o:linux:linux_kernel:5.17:rc3::::::

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

CVE-2022-48816

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools