CVE-2026-46046 | ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

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().

Published: 2026-05-27 Last update: 2026-06-01 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Conclusion & alert: CVE-2026-46046 is rated Low Risk (5.2/100): low exploitation likelihood (EPSS 0.02%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-46046

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 0.02%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-46046

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2026-46046

GitHub Security Advisory for CVE-2026-46046

GHSA-m5xh-rjfq-cc6f · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse()...

OS Trackers for CVE-2026-46046

vendor priority summary link
debian not yet assigned CVE-2026-46046 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2026-46046
redhat low https://access.redhat.com/security/cve/CVE-2026-46046
suse https://www.suse.com/security/cve/CVE-2026-46046/
ubuntu medium CVE-2026-46046 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1422 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1024, ignored 169, needed 94, released 84, not-affected 45, pending 6. https://ubuntu.com/security/CVE-2026-46046

Affected software / configurations for CVE-2026-46046

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-46046

cvelogic Threat Intelligence