CVE-2022-49191

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

26/02/2025

Last modified:

23/09/2025

Description

In the Linux kernel, the following vulnerability has been resolved: mxser: fix xmit_buf leak in activate when LSR == 0xff When LSR is 0xff in ->activate() (rather unlike), we return an error. Provided ->shutdown() is not called when ->activate() fails, nothing actually frees the buffer in this case. Fix this by properly freeing the buffer in a designated label. We jump there also from the "!info->type" if now too.

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::::::::	2.6.33 (including)	4.9.311 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.276 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.238 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.189 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.110 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.33 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.16.19 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.17 (including)	5.17.2 (excluding)

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

CVE-2022-49191

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools