Linux Kernel up to 6.14.2 jbd2 s_sequence privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.14.2. It has been declared as problematic. This vulnerability affects the function s_sequence of the component jbd2. Executing a manipulation can lead to an unknown weakness. This vulnerability is handled as CVE-2025-37839. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.14.2 and classified as problematic. This vulnerability affects the function s_sequence of the component jbd2. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb->s_sequence check Journal emptiness is not determined by sb->s_sequence == 0 but rather by sb->s_start == 0 (which is set a few lines above). Furthermore 0 is a valid transaction ID so the check can spuriously trigger. Remove the invalid WARN_ON.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2025-37839 since 04/16/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 237255 (Debian dla-4178 : ata-modules-5.10.0-34-armmp-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.293, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3 or 6.15-rc1 eliminates this vulnerability. Applying the patch cf30432f5b3064ff85d85639c2f0106f89c566f6/b479839525fe7906966cdc4b5b2afbca048558a1/ad926f735b4d4f10768fec7d080cadeb6d075cac/3b4643ffaf72d7a5a357e9bf68b1775f8cfe7e77/c88f7328bb0fff66520fc9164f02b1d06e083c1b/9eaec071f111cd2124ce9a5b93536d3f6837d457/c98eb9ffb1d9c98237b5e1668eee17654e129fb0/b0cca357f85beb6144ab60c62dcc98508cc044bf/e6eff39dd0fe4190c6146069cc16d160e71d1148 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 vulnerability database at Tenable (237255). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 237255
Nessus Name: Debian dla-4178 : ata-modules-5.10.0-34-armmp-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.4.293/5.10.237/5.15.181/6.1.135/6.6.88/6.12.24/6.13.12/6.14.3/6.15-rc1
Patch: cf30432f5b3064ff85d85639c2f0106f89c566f6/b479839525fe7906966cdc4b5b2afbca048558a1/ad926f735b4d4f10768fec7d080cadeb6d075cac/3b4643ffaf72d7a5a357e9bf68b1775f8cfe7e77/c88f7328bb0fff66520fc9164f02b1d06e083c1b/9eaec071f111cd2124ce9a5b93536d3f6837d457/c98eb9ffb1d9c98237b5e1668eee17654e129fb0/b0cca357f85beb6144ab60c62dcc98508cc044bf/e6eff39dd0fe4190c6146069cc16d160e71d1148

Timelineinfo

04/16/2025 🔍
05/09/2025 +23 days 🔍
05/09/2025 +0 days 🔍
11/15/2025 +189 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-37839 (🔍)
GCVE (CVE): GCVE-0-2025-37839
GCVE (VulDB): GCVE-100-308146

Entryinfo

Created: 05/09/2025 09:06
Updated: 11/15/2025 00:49
Changes: 05/09/2025 09:06 (57), 05/27/2025 05:45 (2), 11/15/2025 00:49 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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