CVE-2026-46046

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

27/05/2026

Last modified:

16/06/2026

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() The commit c8e008b60492 ("ext4: ignore xattrs past end") introduced a refcount leak in when block_csum is false. ext4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to get iloc.bh, but never releases it with brelse().

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::::::::	5.4.293 (including)	5.5 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.10.237 (including)	5.10.258 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.15.181 (including)	5.15.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.1.135 (including)	6.1.175 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.6.88 (including)	6.6.140 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.12.24 (including)	6.12.86 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13.12 (including)	6.14 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.14.3 (including)	6.18.27 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	7.0.4 (excluding)

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

CVE-2026-46046

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools