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NVD / CVE Program· CNA Linux

CVE-2025-22079: ocfs2: validate l_tree_depth to avoid out-of-bounds access

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.25% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 11e24802e73362aa2948ee16b8fb4e32635d5b2a, 17c99ab3db2ba74096d36c69daa6e784e98fc0b8, 3d012ba4404a0bb517658699ba85e6abda386dc3; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1.

Low priority for now. Upgrade to Linux Linux 11e24802e73362aa2948ee16b8fb4e32635d5b2a, 17c99ab3db2ba74096d36c69daa6e784e98fc0b8, 3d012ba4404a0bb517658699ba85e6abda386dc3; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate l_tree_depth to avoid out-of-bounds access The l_tree_depth field is 16-bit (__le16), but the actual maximum depth is limited to OCFS2_MAX_PATH_DEPTH. Add a check to prevent out-of-bounds access if l_tree_depth has an invalid value, which may occur when reading from a corrupted mounted disk [1].

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Apr 16, 2025
Updated
Aug 5, 2026
EPSS
0.2% · 16th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CNA vs NVD score

NVD
7.1
CNA · Linux
7.8
0.7 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-22079

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.6.16 and later · before 5.4.292
  • linux linux kernel5.5 and later · before 5.10.236
  • linux linux kernel5.11 and later · before 5.15.180
  • linux linux kernel5.16 and later · before 6.1.134
  • linux linux kernel6.2 and later · before 6.6.87
  • linux linux kernel6.7 and later · before 6.12.23
  • linux linux kernel6.13 and later · before 6.13.11
  • linux linux kernel6.14 and later · before 6.14.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.16affected
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before ef34840bda333fe99bafbd2d73b70ceaaf9eba66affected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before 538ed8b049ef801a86c543433e5061a91cc106e3affected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before 17c99ab3db2ba74096d36c69daa6e784e98fc0b8affected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before 11e24802e73362aa2948ee16b8fb4e32635d5b2aaffected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before 3d012ba4404a0bb517658699ba85e6abda386dc3affected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before 49d2a2ea9d30991bae82107f9523915b91637683affected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before b942f88fe7d2d789e51c5c30a675fa1c126f5a6daffected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before e95d97c9c8cd0c239b7b59c79be0f6a9dcf7905caffected · git
    • ccd979bdbce9fba8412beb3f1de68a9d0171b12c and later · before a406aff8c05115119127c962cbbbbd202e1973efaffected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.135-16.1.135-1
Debian:13linuxbefore 6.12.25-16.12.25-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-22076Apr 16, 2025 · exfat: fix missing shutdown check
    22Monitor
  • ← EarlierCVE-2025-22078Apr 16, 2025 · staging: vchiq_arm: Fix possible NPR of keep-alive thread
    22Monitor
  • Later →CVE-2025-22080Apr 16, 2025 · fs/ntfs3: Prevent integer overflow in hdr_first_de()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux11e24802e73362aa2948ee16b8fb4e32635d5b2aVendor (CNA)
Linux Linux17c99ab3db2ba74096d36c69daa6e784e98fc0b8Vendor (CNA)
Linux Linux3d012ba4404a0bb517658699ba85e6abda386dc3Vendor (CNA)
Linux Linux49d2a2ea9d30991bae82107f9523915b91637683Vendor (CNA)
Linux Linux538ed8b049ef801a86c543433e5061a91cc106e3Vendor (CNA)
Linux Linuxa406aff8c05115119127c962cbbbbd202e1973efVendor (CNA)
Linux Linuxb942f88fe7d2d789e51c5c30a675fa1c126f5a6dVendor (CNA)
Linux Linuxe95d97c9c8cd0c239b7b59c79be0f6a9dcf7905cVendor (CNA)
Linux Linuxef34840bda333fe99bafbd2d73b70ceaaf9eba66Vendor (CNA)
azl3 kernel 6.6.85.1-4 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.92.2-1 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.135-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (10 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records