CVE-2025-39858
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-19

Last updated on: 2025-12-12

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: eth: mlx4: Fix IS_ERR() vs NULL check bug in mlx4_en_create_rx_ring Replace NULL check with IS_ERR() check after calling page_pool_create() since this function returns error pointers (ERR_PTR). Using NULL check could lead to invalid pointer dereference.
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Meta Information
Published
2025-09-19
Last Modified
2025-12-12
Generated
2026-06-16
AI Q&A
2025-09-19
EPSS Evaluated
2026-06-15
NVD
CVE-2025-39858
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.15 (inc) to 6.16.6 (exc)
linux linux_kernel 6.17
linux linux_kernel 6.17
linux linux_kernel 6.17
linux linux_kernel 6.17
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a bug in the Linux kernel's mlx4 network driver where an incorrect check was used after calling the function page_pool_create(). The code checked for NULL to detect errors, but page_pool_create() returns error pointers (ERR_PTR), not NULL. This mistake could lead to invalid pointer dereference, causing potential crashes or instability.

Impact Analysis

The vulnerability can cause the Linux kernel to dereference invalid pointers, which may lead to system crashes, instability, or denial of service in systems using the mlx4 network driver.

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