CVE-2023-53495
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BaseFortify

Publication date: 2025-10-01

Last updated on: 2026-01-16

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc() rules is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rules to avoid OOB writing or NULL pointer dereference.
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Meta Information
Published
2025-10-01
Last Modified
2026-01-16
Generated
2026-06-16
AI Q&A
2025-10-01
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53495
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.2 (inc) to 5.4.257 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.195 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.132 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.54 (exc)
linux linux_kernel From 6.2 (inc) to 6.5.4 (exc)
linux linux_kernel 6.6
Helpful Resources
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 a possible out-of-bounds (OOB) write in the Linux kernel's mvpp2 ethernet driver, specifically in the function mvpp2_ethtool_get_rxnfc(). The issue arises because the 'rules' buffer is allocated based on a size determined by 'rule_cnt' from user space, but 'rule_cnt' is not properly checked before use. This can lead to writing outside the allocated memory or a NULL pointer dereference.

Impact Analysis

The vulnerability can cause memory corruption due to out-of-bounds writes or cause the kernel to dereference a NULL pointer, potentially leading to system crashes, instability, or denial of service on affected Linux systems using the mvpp2 ethernet driver.

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