Linux Kernel up to 6.15-rc1 tipc_link_xmit memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 6.15-rc1. Impacted is the function tipc_link_xmit. Performing a manipulation results in memory leak. This vulnerability is identified as CVE-2025-37757. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.15-rc1. It has been classified as critical. This affects the function tipc_link_xmit. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: tipc: fix memory leak in tipc_link_xmit In case the backlog transmit queue for system-importance messages is overloaded, tipc_link_xmit() returns -ENOBUFS but the skb list is not purged. This leads to memory leak and failure when a skb is allocated. This commit fixes this issue by purging the skb list before tipc_link_xmit() returns.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-37757 since 04/16/2025. Technical details are known, but no exploit is available.

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 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3 or 6.15-rc2 eliminates this vulnerability. Applying the patch 24e6280cdd7f8d01fc6b9b365fb800c2fb7ea9bb/09c2dcda2c551bba30710c33f6ac678ae7395389/7c5957f7905b4aede9d7a559d271438f3ca9e852/d0e02d3d27a0b4dcb13f954f537ca1dd8f282dcf/a40cbfbb8f95c325430f017883da669b2aa927d4/69ae94725f4fc9e75219d2d69022029c5b24bc9a 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 (237255) and CERT Bund (WID-SEC-2025-0922). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • IBM DataPower Gateway
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
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: Memory leak
CWE: CWE-401 / CWE-404
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: 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 6.1.135/6.6.88/6.12.24/6.13.12/6.14.3/6.15-rc2
Patch: 24e6280cdd7f8d01fc6b9b365fb800c2fb7ea9bb/09c2dcda2c551bba30710c33f6ac678ae7395389/7c5957f7905b4aede9d7a559d271438f3ca9e852/d0e02d3d27a0b4dcb13f954f537ca1dd8f282dcf/a40cbfbb8f95c325430f017883da669b2aa927d4/69ae94725f4fc9e75219d2d69022029c5b24bc9a

Timelineinfo

04/16/2025 🔍
05/01/2025 +15 days 🔍
05/01/2025 +0 days 🔍
03/16/2026 +319 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-37757 (🔍)
GCVE (CVE): GCVE-0-2025-37757
GCVE (VulDB): GCVE-100-306861
CERT Bund: WID-SEC-2025-0922 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/01/2025 15:44
Updated: 03/16/2026 01:17
Changes: 05/01/2025 15:44 (58), 05/27/2025 05:10 (2), 07/28/2025 04:19 (7), 01/31/2026 22:51 (1), 03/16/2026 01:17 (1)
Complete: 🔍
Cache ID: 216::103

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