Linux Kernel up to 6.3.1 qup memory leak

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.3.1. It has been rated as critical. Affected by this issue is some unknown functionality of the component qup. Performing a manipulation results in an unknown weakness. This vulnerability is known as CVE-2023-53567. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.3.1. It has been classified as critical. This affects an unknown function of the component qup. 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. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: spi: qup: Don't skip cleanup in remove's error path Returning early in a platform driver's remove callback is wrong. In this case the dma resources are not released in the error path. this is never retried later and so this is a permanent leak. To fix this, only skip hardware disabling if waking the device fails.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2023-53567 since 10/04/2025. The exploitability is told to be difficult. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 284771 (EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1050)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.283, 5.4.243, 5.10.180, 5.15.111, 6.1.28, 6.2.15 or 6.3.2 eliminates this vulnerability. Applying the patch fd53f41bd86daa39b454fd4637a908ff2123547f/8632384337038b97910c2f7bb5a3f377aa68d001/bc88243bbe6140d289bb32b4ee4607ba5ce1124a/f345d4d71e87d878437417ffbb9a7d4e16d235eb/2d0f63077f481f11a07f20eab1c1f4367dfaef32/55ecdcd12bc176b86fecbcb125ac814ac8fe857a/49c17fccae36505550c9121891722fff337f148a/61f49171a43ab1f80c73c5c88c508770c461e0f2 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 (284771), EUVD (EUVD-2023-60041) and CERT Bund (WID-SEC-2025-2194). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • NetApp ActiveIQ Unified Manager
  • IBM QRadar SIEM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

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: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 284771
Nessus Name: EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1050)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.19.283/5.4.243/5.10.180/5.15.111/6.1.28/6.2.15/6.3.2
Patch: fd53f41bd86daa39b454fd4637a908ff2123547f/8632384337038b97910c2f7bb5a3f377aa68d001/bc88243bbe6140d289bb32b4ee4607ba5ce1124a/f345d4d71e87d878437417ffbb9a7d4e16d235eb/2d0f63077f481f11a07f20eab1c1f4367dfaef32/55ecdcd12bc176b86fecbcb125ac814ac8fe857a/49c17fccae36505550c9121891722fff337f148a/61f49171a43ab1f80c73c5c88c508770c461e0f2

Timelineinfo

10/04/2025 Advisory disclosed
10/04/2025 +0 days CVE reserved
10/04/2025 +0 days VulDB entry created
03/02/2026 +149 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53567 (🔒)
GCVE (CVE): GCVE-0-2023-53567
GCVE (VulDB): GCVE-100-327075
EUVD: 🔒
CERT Bund: WID-SEC-2025-2194 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/04/2025 18:01
Updated: 03/02/2026 04:03
Changes: 10/04/2025 18:01 (57), 10/05/2025 03:59 (1), 11/23/2025 20:19 (7), 12/26/2025 13:37 (1), 01/16/2026 03:05 (2), 02/06/2026 17:36 (13), 03/02/2026 04:03 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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