Linux Kernel up to 6.15-rc4 net 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 was found in Linux Kernel up to 6.15-rc4. It has been declared as critical. This impacts an unknown function of the component net. The manipulation results in memory leak. This vulnerability is cataloged as CVE-2025-37909. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.15-rc4. It has been classified as critical. Affected is some unknown processing of the component net. 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Fix memleak issue when GSO enabled Always map the `skb` to the LS descriptor. Previously skb was mapped to EXT descriptor when the number of fragments is zero with GSO enabled. Mapping the skb to EXT descriptor prevents it from being freed, leading to a memory leak

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2025-37909 since 04/16/2025. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 237223 (Debian dsa-5925 : affs-modules-6.1.0-33-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.182, 6.1.138, 6.6.90, 6.12.28, 6.14.6 or 6.15-rc5 eliminates this vulnerability. Applying the patch df993daa4c968b4b23078eacc248f6502ede8664/a0e0efbabbbe6a1859bc31bf65237ce91e124b9b/dae1ce27ceaea7e1522025b15252e3cc52802622/189b05f189cac9fd233ef04d31cb5078c4d09c39/f42c18e2f14c1b1fdd2a5250069a84bc854c398c/2d52e2e38b85c8b7bc00dca55c2499f46f8c8198 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 (237223), EUVD (EUVD-2025-15929) and CERT Bund (WID-SEC-2025-1114). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Dell Avamar
  • Open Source Linux Kernel
  • 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: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 237223
Nessus Name: Debian dsa-5925 : affs-modules-6.1.0-33-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.15.182/6.1.138/6.6.90/6.12.28/6.14.6/6.15-rc5
Patch: df993daa4c968b4b23078eacc248f6502ede8664/a0e0efbabbbe6a1859bc31bf65237ce91e124b9b/dae1ce27ceaea7e1522025b15252e3cc52802622/189b05f189cac9fd233ef04d31cb5078c4d09c39/f42c18e2f14c1b1fdd2a5250069a84bc854c398c/2d52e2e38b85c8b7bc00dca55c2499f46f8c8198

Timelineinfo

04/16/2025 🔍
05/20/2025 +34 days 🔍
05/20/2025 +0 days 🔍
12/14/2025 +208 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-37909 (🔍)
GCVE (CVE): GCVE-0-2025-37909
GCVE (VulDB): GCVE-100-309714
EUVD: 🔍
CERT Bund: WID-SEC-2025-1114 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/20/2025 18:00
Updated: 12/14/2025 13:07
Changes: 05/20/2025 18:00 (58), 05/25/2025 03:14 (2), 06/04/2025 16:53 (1), 06/04/2025 17:03 (1), 08/10/2025 15:43 (7), 09/28/2025 01:51 (1), 11/17/2025 18:02 (10), 12/14/2025 13:07 (1)
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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