CVE-2022-49833

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

01/05/2025

Last modified:

10/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: clone zoned device info when cloning a device When cloning a btrfs_device, we&#39;re not cloning the associated btrfs_zoned_device_info structure of the device in case of a zoned filesystem. Later on this leads to a NULL pointer dereference when accessing the device&#39;s zone_info for instance when setting a zone as active. This was uncovered by fstests&#39; testcase btrfs/161.

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::::::::	5.11 (including)	6.0.9 (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::::::

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

CVE-2022-49833

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools