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CVE-2022-50845— ext4: fix inode leak in ext4_xattr_inode_create() on an error path

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ext4_xattr_inode_create错误路径未释放inode，可能导致inode泄漏。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.22% · P13

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux bd3b963b273e247e13979f98812a6e4979b5c1e4< 0f709e08caffb41bbc9b38b9a4c1bd0769794007 affected
bd3b963b273e247e13979f98812a6e4979b5c1e4< eab94a46560f68d4bcd15222701ced479f84f427 affected
bd3b963b273e247e13979f98812a6e4979b5c1e4< 9ef603086c5b796fde1c7f22a17d0fc826ba54cb affected
bd3b963b273e247e13979f98812a6e4979b5c1e4< 9882601ee689975c1c0076ee65bf222a2a35e535 affected
bd3b963b273e247e13979f98812a6e4979b5c1e4< 322cf639b0b7f137543072c55545adab782b3a25 affected
bd3b963b273e247e13979f98812a6e4979b5c1e4< fdaaf45786dc8c17a72901021772520fceb18f8c affected
bd3b963b273e247e13979f98812a6e4979b5c1e4< 70e5b46beba64706430a87a6d516054225e8ac8a affected
bd3b963b273e247e13979f98812a6e4979b5c1e4< e4db04f7d3dbbe16680e0ded27ea2a65b10f766a affected
… +10 more rows
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I. Basic Information for CVE-2022-50845

Vulnerability Information
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Vulnerability Title
ext4: fix inode leak in ext4_xattr_inode_create() on an error path
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ext4_xattr_inode_create错误路径未释放inode，可能导致inode泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux bd3b963b273e247e13979f98812a6e4979b5c1e4 ~ 0f709e08caffb41bbc9b38b9a4c1bd0769794007 -
Linux Linux 4.13 -

II. Public POCs for CVE-2022-50845

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III. Intelligence Information for CVE-2022-50845

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Other References for CVE-2022-50845 (8)

Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total

CVE-2023-54184 9.8 CRITICAL scsi: target: iscsit: Free cmds before session free
CVE-2023-54223 9.8 CRITICAL net/mlx5e: xsk: Fix invalid buffer access for legacy rq
CVE-2023-54237 9.8 CRITICAL net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()
CVE-2023-54257 9.8 CRITICAL net: macb: fix a memory corruption in extended buffer descriptor mode
CVE-2023-54258 9.8 CRITICAL cifs: fix potential oops in cifs_oplock_break
CVE-2023-54269 9.8 CRITICAL SUNRPC: double free xprt_ctxt while still in use
CVE-2023-54280 9.8 CRITICAL cifs: fix potential race when tree connecting ipc
CVE-2023-54292 9.8 CRITICAL RDMA/irdma: Fix data race on CQP request done
CVE-2023-54203 9.1 CRITICAL ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
CVE-2022-50880 8.8 HIGH wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
CVE-2023-54262 8.8 HIGH net/mlx5e: Don't clone flow post action attributes second time
CVE-2023-54214 8.8 HIGH Bluetooth: L2CAP: Fix potential user-after-free
CVE-2023-54162 8.8 HIGH ksmbd: fix possible memory leak in smb2_lock()
CVE-2023-54318 8.8 HIGH net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add
CVE-2023-54250 8.2 HIGH ksmbd: avoid out of bounds access in decode_preauth_ctxt()
CVE-2023-54164 8.0 HIGH Bluetooth: ISO: fix iso_conn related locking and validity issues
CVE-2023-54206 7.8 HIGH net/sched: flower: fix filter idr initialization
CVE-2023-54202 7.8 HIGH drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
CVE-2023-54210 7.8 HIGH Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
CVE-2023-54243 7.8 HIGH netfilter: ebtables: fix table blob use-after-free

Showing top 20 of 244 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50845

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