Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0 USB Interface 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 classified as critical has been found in Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0. Affected by this issue is some unknown functionality of the component USB Interface. The manipulation leads to memory leak. This vulnerability is listed as CVE-2026-31604. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0 and classified as critical. This issue affects some unknown processing of the component USB Interface. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix device leak on probe failure Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. This driver takes a reference to the USB device during probe but does not to release it on all probe errors (e.g. when descriptor parsing fails). Drop the redundant device reference to fix the leak, reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of further memory leaks.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2026-31604 since 03/09/2026. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 325421 (Ubuntu 26.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8507-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.83, 6.18.24, 6.19.14 or 7.0.1 eliminates this vulnerability. Applying the patch a4f4371d194dfa5473cc961f86194084b1b13a69/89a9c1bc7d797120bcc290864e0cb10a440a677f/af7307e96dad00bcc2675dac650d8558a52f2c6f/25a827b7e1d5747a255bdc757f1d3e9e1e8a4e2a 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 (325421) and CERT Bund (WID-SEC-2026-1279). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Red Hat Enterprise Linux
  • Oracle Linux
  • Open Source Linux Kernel

Productinfo

Type

Vendor

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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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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: 325421
Nessus Name: Ubuntu 26.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8507-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.83/6.18.24/6.19.14/7.0.1
Patch: a4f4371d194dfa5473cc961f86194084b1b13a69/89a9c1bc7d797120bcc290864e0cb10a440a677f/af7307e96dad00bcc2675dac650d8558a52f2c6f/25a827b7e1d5747a255bdc757f1d3e9e1e8a4e2a

Timelineinfo

03/09/2026 CVE reserved
04/24/2026 +45 days Advisory disclosed
04/24/2026 +0 days VulDB entry created
07/08/2026 +75 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-31604 (🔒)
GCVE (CVE): GCVE-0-2026-31604
GCVE (VulDB): GCVE-100-359393
CERT Bund: WID-SEC-2026-1279 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 04/24/2026 17:53
Updated: 07/08/2026 14:55
Changes: 04/24/2026 17:53 (58), 05/26/2026 06:00 (7), 07/08/2026 14:55 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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