CVE-2026-23020
net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
Description
In the Linux kernel, the following vulnerability has been resolved: net: 3com: 3c59x: fix possible null dereference in vortex_probe1() pdev can be null and free_ring: can be called in 1297 with a null pdev.
INFO
Published Date :
Jan. 31, 2026, 12:16 p.m.
Last Modified :
Jan. 31, 2026, 12:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-23020
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel.
- Apply the patch for the vortex_probe1 function.
- Ensure pdev is not null before freeing.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-23020.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23020 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-23020
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-23020 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-23020 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jan. 31, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: 3com: 3c59x: fix possible null dereference in vortex_probe1() pdev can be null and free_ring: can be called in 1297 with a null pdev. Added Reference https://git.kernel.org/stable/c/053ac9e37eee435e999277c0f1ef890dad6064bf Added Reference https://git.kernel.org/stable/c/28b2a805609699be7b90020ae7dccfb234be1ceb Added Reference https://git.kernel.org/stable/c/2f05f7737e16d9a40038cc1c38a96a3f7964898b Added Reference https://git.kernel.org/stable/c/606872c8e8bf96066730f6a2317502c5633c37f1 Added Reference https://git.kernel.org/stable/c/6cff14b831dbdb32675b4c7904dcc3eeeaf47e9d Added Reference https://git.kernel.org/stable/c/a4e305ed60f7c41bbf9aabc16dd75267194e0de3 Added Reference https://git.kernel.org/stable/c/d82796a57cc0dac1dbef19d913c8f02a8cc7b1a7