IM
IronMonkey Threat Research

CVE-2026-46046 MEDIUM

Published: 2026-05-27 | Last Modified: 2026-09-08 | Status: Modified

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().

CVSS Metrics

Base Score: 5.5 (MEDIUM)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Primary
en NVD-CWE-noinfo

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7d242450a200> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d2424650f80> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d23a52f7700> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d23549fc480> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d242450aec0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d236440e980> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d242a79f640> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d2364d69840> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d23a52f4bc0> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References

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