CVE-2026-43295
Received Received - Intake

Linux kernel Memory Leak Fix in RapidIO

Publication date: 2026-05-08

Last updated on: 2026-05-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() When idtab allocation fails, net is not registered with rio_add_net() yet, so kfree(net) is sufficient to release the memory. Set mport->net to NULL to avoid dangling pointer.

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Meta Information

Published
2026-05-08
Last Modified
2026-05-08
Generated
2026-07-09
AI Q&A
2026-05-08
EPSS Evaluated
2026-07-08
NVD
CVE-2026-43295
EUVD
EUVD-2026-28565

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
rapidio linux_kernel *

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is related to the Linux kernel's rapidio subsystem. It involves improper memory management where the function rio_free_net() was used to free memory allocated for a network structure in rio_scan_alloc_net(). When the allocation of idtab fails, the network structure is not yet registered, so using rio_free_net() is incorrect. The fix replaces rio_free_net() with kfree(), which properly releases the memory, and sets the mport->net pointer to NULL to avoid a dangling pointer.

Impact Analysis

This vulnerability can lead to improper memory release and dangling pointers in the rapidio subsystem of the Linux kernel. Such issues may cause memory corruption or instability in the kernel, potentially leading to crashes or unpredictable behavior of systems using rapidio. However, the exact impact depends on whether the rapidio subsystem is in use and how the failure scenario is triggered.

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