CVE-2023-53652
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-07

Last updated on: 2026-02-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: vdpa: Add features attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa features attr to avoid such bugs.
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Meta Information
Published
2025-10-07
Last Modified
2026-02-03
Generated
2026-06-16
AI Q&A
2025-10-07
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53652
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.5
linux linux_kernel From 6.2 (inc) to 6.4.12 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability is related to the Linux kernel's vdpa component. The vdpa_nl_policy structure, which validates netlink attributes (nlattr) when parsing incoming netlink messages, was missing a policy for the 'features' attribute. This omission could lead to an invalid nlattr pointer after parsing, potentially causing an out-of-bounds (OOB) read similar to CVE-2023-3773. The vulnerability was fixed by adding the missing nla_policy for the vdpa features attribute to ensure proper validation and prevent such bugs.

Impact Analysis

This vulnerability could allow an attacker to cause an out-of-bounds read in the Linux kernel's vdpa component by exploiting the missing validation of the 'features' attribute in netlink messages. Such an OOB read may lead to information disclosure, system instability, or crashes, potentially compromising system security and reliability.

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