In the Linux kernel, the following vulnerability has been resolved: jfs: truncate good inode pages when hard link is 0 The fileset value of the inode copy from the disk by the reproducer is AGGR_RESERVED_I. When executing evict, its hard link number is 0, so its inode pages are not truncated. This causes the bugon to be triggered when executing clear_inode() because nrpages is greater than 0.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00049.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

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Vendors Products
Linux
  • Linux Kernel
References
Link Providers
https://git.kernel.org/stable/c/1bb5cdc3e39f0c2b311fcb631258b7e60d3fb0d3 cve-icon cve-icon
https://git.kernel.org/stable/c/2b1d5ca395a5fb170c3f885cd42c16179f7f54ec cve-icon cve-icon
https://git.kernel.org/stable/c/2d91b3765cd05016335cd5df5e5c6a29708ec058 cve-icon cve-icon
https://git.kernel.org/stable/c/34d8e982bac48bdcca7524644a8825a580edce74 cve-icon cve-icon
https://git.kernel.org/stable/c/5845b926c561b8333cd65169526eec357d7bb449 cve-icon cve-icon
https://git.kernel.org/stable/c/89fff8e3d6710fc32507b8e19eb5afa9fb79b896 cve-icon cve-icon
https://git.kernel.org/stable/c/8ed7275910fb7177012619864e04d3008763f3ea cve-icon cve-icon
https://git.kernel.org/stable/c/b5b471820c33365a8ccd2d463578bf4e47056c2c cve-icon cve-icon
https://git.kernel.org/stable/c/df3fd8daf278eca365f221749ae5b728e8382a04 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html cve-icon
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html cve-icon
https://lore.kernel.org/linux-cve-announce/2025091139-CVE-2025-39743-75bd@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-39743 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-39743 cve-icon
History

Fri, 02 Jan 2026 15:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Mon, 03 Nov 2025 18:30:00 +0000

Type Values Removed Values Added
References

Fri, 12 Sep 2025 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Fri, 12 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Thu, 11 Sep 2025 17:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: jfs: truncate good inode pages when hard link is 0 The fileset value of the inode copy from the disk by the reproducer is AGGR_RESERVED_I. When executing evict, its hard link number is 0, so its inode pages are not truncated. This causes the bugon to be triggered when executing clear_inode() because nrpages is greater than 0.
Title jfs: truncate good inode pages when hard link is 0
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-02T15:31:55.307Z

Reserved: 2025-04-16T07:20:57.120Z

Link: CVE-2025-39743

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-11T17:15:37.420

Modified: 2025-11-03T18:16:45.587

Link: CVE-2025-39743

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-09-11T00:00:00Z

Links: CVE-2025-39743 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-09-12T08:02:49Z