Linux Kernel up to 6.17.7 jfs privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.17.7. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component jfs. Performing a manipulation results in an unknown weakness. This vulnerability is cataloged as CVE-2025-40312. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.17.7. This affects an unknown function of the component jfs. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: jfs: Verify inode mode when loading from disk The inode mode loaded from corrupted disk can be invalid. Do like what commit 0a9e74051313 ("isofs: Verify inode mode when loading from disk") does.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-40312 since 04/16/2025. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/23/2026).

The vulnerability scanner Nessus provides a plugin with the ID 278559 (Debian dla-4404 : ata-modules-5.10.0-35-armmp-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.302, 5.10.247, 5.15.197, 6.1.159, 6.6.117, 6.12.58 or 6.17.8 eliminates this vulnerability. Applying the patch 19cce65709a8a2966203653028d9004e28e85bd5/fabc1348bb8fe6bc80850014ee94bd89945f7f4d/46c76cfa17d1828c1a889cb54cb11d5ef3dfbc0f/2870a7dec49ccdc3f6ae35da8f5d6737f21133a8/ce054a366c54992185c9514e489a14f145b10c29/1795277a4e98d82e6451544d43695540cee042ea/8d6a9cbd276b3b85da0e7e98208f89416fed9265/7a5aa54fba2bd591b22b9b624e6baa9037276986 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (278559) and CERT Bund (WID-SEC-2025-2756). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • NetApp FAS
  • NetApp AFF
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Microsoft Azure Linux

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 278559
Nessus Name: Debian dla-4404 : ata-modules-5.10.0-35-armmp-di - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.302/5.10.247/5.15.197/6.1.159/6.6.117/6.12.58/6.17.8
Patch: 19cce65709a8a2966203653028d9004e28e85bd5/fabc1348bb8fe6bc80850014ee94bd89945f7f4d/46c76cfa17d1828c1a889cb54cb11d5ef3dfbc0f/2870a7dec49ccdc3f6ae35da8f5d6737f21133a8/ce054a366c54992185c9514e489a14f145b10c29/1795277a4e98d82e6451544d43695540cee042ea/8d6a9cbd276b3b85da0e7e98208f89416fed9265/7a5aa54fba2bd591b22b9b624e6baa9037276986

Timelineinfo

04/16/2025 CVE reserved
12/08/2025 +236 days Advisory disclosed
12/08/2025 +0 days VulDB entry created
02/23/2026 +77 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-40312 (🔒)
GCVE (CVE): GCVE-0-2025-40312
GCVE (VulDB): GCVE-100-334719
CERT Bund: WID-SEC-2025-2756 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/08/2025 06:20
Updated: 02/23/2026 08:31
Changes: 12/08/2025 06:20 (57), 12/13/2025 16:41 (2), 01/04/2026 15:14 (7), 01/23/2026 06:47 (1), 02/23/2026 08:31 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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