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CVE-2022-49255

18
FAUCET Score

CVE-2022-49255 is a vulnerability in the Linux kernel's F2FS filesystem, specifically a missing free nid in the f2fs_handle_failed_inode function. This bug can lead to a kernel crash and potential data loss, as indicated by "May loss orphan inode, run fsck to fix" and a "kernel BUG" message. Rated as Medium severity (CVSS 5.5), it has a local attack vector, low attack complexity, and high impact on availability, but no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.19, < 5.4.189CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.110CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.33CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.17, < 5.17.2CPE 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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 71st 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 (1)

redhatCVE-2022-49255

kernel: f2fs: fix missing free nid in f2fs_handle_failed_inode

Feb 26, 2025

References

git.kernel.org / stable/c/005f9cdab70c915702254c5eb67a8efced80e821
Patch
git.kernel.org / stable/c/1a11a873749c6375bb668953fa1a196d8538d26b
Patch
git.kernel.org / stable/c/2fef99b8372c1ae3d8445ab570e888b5a358dbe9
Patch
git.kernel.org / stable/c/8579b413af100ec5f3592bd6cf11559312b380c0
Patch
git.kernel.org / stable/c/aa80bf73e3b3fb7026d343c77b3ddc849e26a095
Patch
git.kernel.org / stable/c/d1eaaf6cadedf638e17017b0a04d56308405ac10
Patch