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CVE-2025-39734· NVD / CVE Program· CNA Linux

Revert "fs/ntfs3: Replace inode_trylock with inode_lock"

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.14% (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 1903a6c1f2818154f6bc87bceaaecafa92b6ac5c, 5.15.190, 6.1.148.

Low priority for now. Upgrade to Linux Linux 1903a6c1f2818154f6bc87bceaaecafa92b6ac5c, 5.15.190, 6.1.148 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: Revert "fs/ntfs3: Replace inode_trylock with inode_lock" This reverts commit 69505fe98f198ee813898cbcaf6770949636430b. Initially, conditional lock acquisition was removed to fix an xfstest bug that was observed during internal testing. The deadlock reported by syzbot is resolved by reintroducing conditional acquisition. The xfstest bug no longer occurs on kernel version 6.16-rc1 during internal testing. I assume that changes in other modules may have contributed to this.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 7, 2025
Updated
Oct 19, 2026
EPSS
0.1% · 3th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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.

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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
debiandebian linux

Affected versions

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

  • debian debian linux11.0
  • linux linux kernel6.1.103 and later · before 6.1.148
  • linux linux kernel6.6.44 and later · before 6.6.102
  • linux linux kernel5.15.165 and later · before 5.15.190
  • linux linux kernel6.13 and later · before 6.15.10
  • linux linux kernel6.16 and later · before 6.16.1
  • linux linux kernel6.10.3 and later · before 6.12.42

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

    • d5ad80aabd5a76a5de52b7663b1f3223dd01ea38, 6.11affected
    • e3e3b3eb54feaf6400800812c8d0f95a7213923d and later · before bec8109f957a6e193e52d1728799994c8005ca83affected · git
    • 7a498fc945080bccc25fdc36f1d663798441158b and later · before 1903a6c1f2818154f6bc87bceaaecafa92b6ac5caffected · git
    • 53173e3865acb06f3e86c703696510c12fecc612 and later · before a936be9b5f51c4d23f66fb673e9068c6b08104a4affected · git
    • 69505fe98f198ee813898cbcaf6770949636430b and later · before b356ee013a79e7e3147bfe065de376706c5d2ee9affected · git
    • 69505fe98f198ee813898cbcaf6770949636430b and later · before 7ce6f83ca9d52c9245b7a017466fc4baa1241b0baffected · git
    • 69505fe98f198ee813898cbcaf6770949636430b and later · before bd20733746263acaaf2a21881665db27ee4303d5affected · git
    • 69505fe98f198ee813898cbcaf6770949636430b and later · before a49f0abd8959048af18c6c690b065eb0d65b2d21affected · git
    • 5.15.165 and later · before 5.15.190affected · semver
    • 6.1.103 and later · before 6.1.148affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.148-16.1.148-1
Debian:13linuxbefore 6.12.43-16.12.43-1
Debian:14linuxbefore 6.16.3-16.16.3-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • 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
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-39732Sep 7, 2025 · wifi: ath11k: fix sleeping-in-atomic in ath11k_mac_op_set_bitrate_mask()
    22Monitor
  • ← EarlierCVE-2025-39733Sep 7, 2025 · team: replace team lock with rtnl lock
    22Monitor
  • Later →CVE-2025-39736Sep 11, 2025 · mm/kmemleak: avoid deadlock by moving pr_warn() outside kmemleak_lock
    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 Linux1903a6c1f2818154f6bc87bceaaecafa92b6ac5cVendor (CNA)
Linux Linux5.15.190Vendor (CNA)
Linux Linux6.1.148Vendor (CNA)
Linux Linux6.11Vendor (CNA)
Linux Linux6.6.102Vendor (CNA)
Linux Linux7ce6f83ca9d52c9245b7a017466fc4baa1241b0bVendor (CNA)
Linux Linuxa49f0abd8959048af18c6c690b065eb0d65b2d21Vendor (CNA)
Linux Linuxa936be9b5f51c4d23f66fb673e9068c6b08104a4Vendor (CNA)
Linux Linuxb356ee013a79e7e3147bfe065de376706c5d2ee9Vendor (CNA)
Linux Linuxbd20733746263acaaf2a21881665db27ee4303d5Vendor (CNA)
Linux Linuxbec8109f957a6e193e52d1728799994c8005ca83Vendor (CNA)
debian:linux6.1.148-1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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
none
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
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records