CVE-2022-50367

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

17/09/2025

Last modified:

14/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved: fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF). Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes)

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.9.331 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.296 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.262 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.218 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.148 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.73 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.19.15 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.0 (including)	6.0.1 (excluding)

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

CVE-2022-50367

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools