Linux Kernel up to 5.15.104/6.1.21/6.2.8 scsi kzalloc null pointer dereference

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.15.104/6.1.21/6.2.8 and classified as critical. This issue affects the function kzalloc of the component scsi. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2023-53038. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.15.104/6.1.21/6.2.8. This vulnerability affects the function kzalloc of the component scsi. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Check kzalloc() in lpfc_sli4_cgn_params_read() If kzalloc() fails in lpfc_sli4_cgn_params_read(), then we rely on lpfc_read_object()'s routine to NULL check pdata. Currently, an early return error is thrown from lpfc_read_object() to protect us from NULL ptr dereference, but the errno code is -ENODEV. Change the errno code to a more appropriate -ENOMEM.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2023-53038 since 04/16/2025. Technical details are known, but there is no available exploit.

Upgrading to version 5.15.105, 6.1.22 or 6.2.9 eliminates this vulnerability. Applying the patch 67b8343998b84418bc5b5206aa01fe9b461a80ef/4829a1e1171536978b240a1438789c2e4d5c9715/908dd9a0853a88155a5a36018c7e2b32ccf20379/312320b0e0ec21249a17645683fe5304d796aec1 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.

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

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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