Linux Kernel up to 5.15.104/6.1.21/6.2.8 otx2_pf.c free_percpu memory leak

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 5.15.104/6.1.21/6.2.8. Affected by this vulnerability is the function free_percpu of the file drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c. The manipulation leads to memory leak. This vulnerability is documented as CVE-2023-53069. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.15.104/6.1.21/6.2.8. It has been rated as critical. This issue affects the function free_percpu of the file drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c. 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: octeontx2-vf: Add missing free for alloc_percpu Add the free_percpu for the allocated "vf->hw.lmt_info" in order to avoid memory leak, same as the "pf->hw.lmt_info" in `drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c`.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2023-53069 since 05/02/2025. Technical details are known, but no exploit is available.

Upgrading to version 5.15.105, 6.1.22 or 6.2.9 eliminates this vulnerability. Applying the patch 90874b76e5f82eaa3309714d72ff2cd8bb8d1b02/840631bcf21f58c0a3f01378a54d79e9ce86b226/813b590840771890c738ce6dbfd0c5938a1bafb9/f038f3917baf04835ba2b7bcf2a04ac93fbf8a9c 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.

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

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.15.104
• 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
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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