Linux Kernel up to 6.1.17/6.2.4 xlnx_add_cb_for_notify_event memory leak

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.17/6.2.4 and classified as critical. This affects the function xlnx_add_cb_for_notify_event. Executing a manipulation can lead to memory leak. This vulnerability is registered as CVE-2023-53267. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.1.17/6.2.4. This vulnerability affects the function xlnx_add_cb_for_notify_event. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: driver: soc: xilinx: fix memory leak in xlnx_add_cb_for_notify_event() The kfree() should be called when memory fails to be allocated for cb_data in xlnx_add_cb_for_notify_event(), otherwise there will be a memory leak, so add kfree() to fix it.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2023-53267 since 09/16/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 265155 (Linux Distros Unpatched Vulnerability : CVE-2023-53267), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.18 or 6.2.5 eliminates this vulnerability. Applying the patch d35290addcbac94b076babe0a798a8c043421812/9dfb6c784e385f6e61994bb4e16ce12f3e4940be/1bea534991b9b35c41848a397666ada436456beb 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 CNNVD (CNNVD-202509-2612), Tenable (265155) and CERT Bund (WID-SEC-2025-2053). 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
• IBM QRadar SIEM
• SUSE openSUSE
• Open Source Linux Kernel
• RESF Rocky Linux
• Dell Secure Connect Gateway
• F5 F5OS

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.1.0
• 6.1.1
• 6.1.2
• 6.1.3
• 6.1.4
• 6.1.5
• 6.1.6
• 6.1.7
• 6.1.8
• 6.1.9
• 6.1.10
• 6.1.11
• 6.1.12
• 6.1.13
• 6.1.14
• 6.1.15
• 6.1.16
• 6.1.17
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion