CVE-2026-23020
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-31

Last updated on: 2026-03-25

Assigner: kernel.org

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.
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Meta Information
Published
2026-01-31
Last Modified
2026-03-25
Generated
2026-06-16
AI Q&A
2026-01-31
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23020
EUVD
EUVD-2026-5074
Affected Vendors & Products
Showing 16 associated CPEs
Vendor Product Version / Range
linux linux_kernel 4.17
linux linux_kernel From 5.11 (inc) to 5.15.198 (exc)
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 6.13 (inc) to 6.18.6 (exc)
linux linux_kernel From 6.2 (inc) to 6.6.121 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.66 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.161 (exc)
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 4.17.1 (inc) to 5.10.248 (exc)
linux linux_kernel From 4.16.12 (inc) to 4.17 (exc)
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 possible null pointer dereference in the Linux kernel's 3com 3c59x network driver, specifically in the function vortex_probe1(). The issue arises because the pdev (platform device) pointer can be null, and the function free_ring can be called with this null pdev, potentially causing a crash or undefined behavior.

Impact Analysis

If exploited or triggered, this vulnerability can cause the affected system to crash or behave unpredictably due to a null pointer dereference in the network driver. This could lead to denial of service or system instability.

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