ext4: fix inode leak in ext4_xattr_inode_create() on an error path (Linux Linux)

CVE-2022-50845
Not available

At a glance

Source
NVD
EPSS
EPSS 0.25 % · percentile 17 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix inode leak in ext4_xattr_inode_create() on an error path There is issue as follows when do setxattr with inject fault: [localhost]# fsck.ext4 -fn /dev/sda e2fsck 1.46.6-rc1 (12-Sep-2022) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Unattached zero-length inode 15. Clear? no Unattached inode 15 Connect to /lost+found? no Pass 5: Checking group summary information /dev/sda: ********** WARNING: Filesystem still has errors ********** /dev/sda: 15/655360 files (0.0% non-contiguous), 66755/2621440 blocks This occurs in 'ext4_xattr_inode_create()'. If 'ext4_mark_inode_dirty()' fails, dropping i_nlink of the inode is needed. Or will lead to inode leak.

References

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected bd3b963b273e247e13979f98812a6e4979b5c1e4 < 0f709e08caffb41bbc9b38b9a4c1bd0769794007 ; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 < eab94a46560f68d4bcd15222701ced479f84f427 ; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 < 9ef603086c5b796fde1c7f22a17d0fc826ba54cb ; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 < 9882601ee689975c1c0076ee65bf222a2a35e535 ; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 < 322cf639b0b7f137543072c55545adab782b3a25 ; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 < fdaaf45786dc8c17a72901021772520fceb18f8c
Linux · Linuxaffected 4.13 ; unaffected 0 < 4.13 ; unaffected 4.14.303 ≤ 4.14.* ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.* ; unaffected 5.10.163 ≤ 5.10.*

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