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CVE-2022-50009

17
FAUCET Score

CVE-2022-50009 is a null-pointer dereference vulnerability in the F2FS filesystem module of the Linux kernel, affecting systems utilizing this filesystem. This flaw occurs during atomic write operations when a COW (Copy-On-Write) inode's internal pointer is incorrectly referenced as NULL, leading to a kernel crash. The vulnerability has a CVSS v3.1 score of 5.5 (Medium), indicating a local attack vector with low attack complexity and user privileges required. Its primary impact is a denial of service (system crash), with no impact on confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE. It is not listed in CISA's Known Exploited Vulnerabilities Catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.8, < 5.18.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.19, < 5.19.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.16%
Probability of exploitation in next 30 days
EPSS Percentile
5.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0016 is in the 32nd percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (2)

redhatCVE-2022-50009

kernel: f2fs: fix null-ptr-deref in f2fs_get_dnode_of_data

Jun 18, 2025
microsoft2025-Jun/CVE-2022-50009Moderate

f2fs: fix null-ptr-deref in f2fs_get_dnode_of_data

Jun 10, 2025

References

git.kernel.org / stable/c/0f63e33eca6fa29a11c76fa31db5fe1cada5ad6e
Patch
git.kernel.org / stable/c/4a2c5b7994960fac29cf8a3f4e62855bae1b27d4
Patch
git.kernel.org / stable/c/7000ad53ec1b17bd2fac76984b7b0c663755cbb7
Patch