Linux Kernel up to 5.15.127/6.1.46/6.4.11 kfree memory leak

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 5.15.127/6.1.46/6.4.11. This vulnerability affects the function kfree. The manipulation results in memory leak. This vulnerability was named CVE-2023-53617. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.15.127/6.1.46/6.4.11. Affected is the function kfree. 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: soc: aspeed: socinfo: Add kfree for kstrdup Add kfree() in the later error handling in order to avoid memory leak.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2023-53617 since 10/04/2025. There are known technical details, but no exploit is available.

Upgrading to version 5.15.128, 6.1.47 or 6.4.12 eliminates this vulnerability. Applying the patch dfb9676ed25be25ca7cd198d0f0e093b76b7bc7f/b662856b71343d9e731c1cd4bbe54758c7791abb/d9a5ad4477d2a11e9b03f00c52694451e9332228/6e6d847a8ce18ab2fbec4f579f682486a82d2c6b 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 vulnerability database at CERT Bund (WID-SEC-2025-2229). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Amazon Linux 2
• Red Hat Enterprise Linux
• SUSE Linux
• Oracle Linux
• RESF Rocky Linux
• Open Source Linux Kernel
• IBM QRadar SIEM
• Dell NetWorker

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.15.127
• 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
• 6.1.18
• 6.1.19
• 6.1.20
• 6.1.21
• 6.1.22
• 6.1.23
• 6.1.24
• 6.1.25
• 6.1.26
• 6.1.27
• 6.1.28
• 6.1.29
• 6.1.30
• 6.1.31
• 6.1.32
• 6.1.33
• 6.1.34
• 6.1.35
• 6.1.36
• 6.1.37
• 6.1.38
• 6.1.39
• 6.1.40
• 6.1.41
• 6.1.42
• 6.1.43
• 6.1.44
• 6.1.45
• 6.1.46
• 6.4.0
• 6.4.1
• 6.4.2
• 6.4.3
• 6.4.4
• 6.4.5
• 6.4.6
• 6.4.7
• 6.4.8
• 6.4.9
• 6.4.10
• 6.4.11

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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