Linux Kernel up to 6.1.15/6.2.2 mpi3mr_get_all_tgt_info out-of-bounds

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.1.15/6.2.2. Affected by this vulnerability is the function mpi3mr_get_all_tgt_info. The manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2023-53320. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 6.1.15/6.2.2. This issue affects the function mpi3mr_get_all_tgt_info. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info() The function mpi3mr_get_all_tgt_info() has four issues: 1) It calculates valid entry length in alltgt_info assuming the header part of the struct mpi3mr_device_map_info would equal to sizeof(u32). The correct size is sizeof(u64). 2) When it calculates the valid entry length kern_entrylen, it excludes one entry by subtracting 1 from num_devices. 3) It copies num_device by calling memcpy(). Substitution is enough. 4) It does not specify the calculated length to sg_copy_from_buffer(). Instead, it specifies the payload length which is larger than the alltgt_info size. It causes "BUG: KASAN: slab-out-of-bounds". Fix the issues by using the correct header size, removing the subtraction from num_devices, replacing the memcpy() with substitution and specifying the correct length to sg_copy_from_buffer().

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2023-53320 since 09/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265299 (Linux Distros Unpatched Vulnerability : CVE-2023-53320), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.16 or 6.2.3 eliminates this vulnerability. Applying the patch 8ba997b22f2cd5d29aad8c39f6201f7608ed0c04/2f3d3fa5b8ed7d3b147478f42b00b468eeb1ecd2/fb428a2005fc1260d18b989cc5199f281617f44d 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 (265299) and CERT Bund (WID-SEC-2025-2077). If you want to get the best quality for vulnerability data then you always have to consider 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

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
• 6.2.0
• 6.2.1
• 6.2.2

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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