Review reviewCritical

CVE-2025-68315

Linux

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to detect potential corrupted nid in free_nid_list As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.

CVSS: 9.8
EPSS: 0.37%
CISA KEV: Not listed
Published: 2025.12.17

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.37%

Technical severityCVSS 9.8

Vulnerability overview

Affected product and versions

Product: Linux
Affected versions: >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 88b2ddb0c4f1dc874d4598e78cc830c64315ed86, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 9337ed5e777e1c19854928cba7a8131dd00e611b, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 6b9525596a83cd5b7bbc2c7bd5f9ad9cf5ad60fa, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < adbcb34f03abb89e681a5907c4c3ce4bf224991d, >= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 8fc6056dcf79937c46c97fa4996cda65956437a9, >= 3.8
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: Not available