CVE-2026-46046

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

At a glance

Severity
Not available
EPSS
EPSS 0.13 % · percentile 2 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD 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().

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3 < dd98a5603a212ea9c96c6982ccdbcc748fdb9a56 ; affected f737418b6de31c962c7192777ee4018906975383 < 153ab2c52355fbebcae622db8e7b506492c73a29 ; affected cf9291a3449b04688b81e32621e88de8f4314b54 < b706d00206a9e82362a9633efbd8b5775650169b ; affected 362a90cecd36e8a5c415966d0b75b04a0270e4dd < 1bc1107a3a403a6d440673ed6666f7b07ef868a8 ; affected eb59cc31b6ea076021d14b04e7faab1636b87d0e < 097227f1ffe1a85bc3c359f81c71e3d40e06e920 ; affected c8e008b60492cf6fd31ef127aea6d02fd3d314cd < 1e6b0a69bf2c9c819255c7566e4355536d81d9cf
Linux · Linuxaffected 6.15 ; unaffected 0 < 6.15 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.*

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD