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CVE-2022-50845

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected bd3b963b273e247e13979f98812a6e4979b5c1e4 before 0f709e08caffb41bbc9b38b9a4c1bd0769794007; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 before eab94a46560f68d4bcd15222701ced479f84f427; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 before 9ef603086c5b796fde1c7f22a17d0fc826ba54cb; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 before 9882601ee689975c1c0076ee65bf222a2a35e535; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 before 322cf639b0b7f137543072c55545adab782b3a25; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 before fdaaf45786dc8c17a72901021772520fceb18f8c; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 before 70e5b46beba64706430a87a6d516054225e8ac8a; affected bd3b963b273e247e13979f98812a6e4979b5c1e4 before e4db04f7d3dbbe16680e0ded27ea2a65b10f766a
Linux / Linuxaffected 4.13; unaffected 0 before 4.13; unaffected 4.14.303 through 4.14.*; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.87 through 5.15.*; unaffected 6.0.18 through 6.0.*; unaffected 6.1.4 through 6.1.*; unaffected 6.2 through *

CWE

No CWE identifiers supplied.

References