CVE-2026-43196

Analyzed Analyzed - Analysis Complete

Double Free in TI PRUSS Linux Kernel Driver

Publication date: 2026-05-06

Last updated on: 2026-05-11

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: soc: ti: pruss: Fix double free in pruss_clk_mux_setup() In the pruss_clk_mux_setup(), the devm_add_action_or_reset() indirectly calls pruss_of_free_clk_provider(), which calls of_node_put(clk_mux_np) on the error path. However, after the devm_add_action_or_reset() returns, the of_node_put(clk_mux_np) is called again, causing a double free. Fix by returning directly, to avoid the duplicate of_node_put().

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-05-06

Last Modified

2026-05-11

Generated

2026-07-06

AI Q&A

2026-05-06

EPSS Evaluated

2026-07-05

NVD

CVE-2026-43196

EUVD

EUVD-2026-27759

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 6.2 (inc) to 6.6.128 (exc)
linux	linux_kernel	From 6.7 (inc) to 6.12.75 (exc)
linux	linux_kernel	From 6.13 (inc) to 6.18.16 (exc)
linux	linux_kernel	From 6.19 (inc) to 6.19.6 (exc)
linux	linux_kernel	From 5.11 (inc) to 5.15.202 (exc)
linux	linux_kernel	From 5.16 (inc) to 6.1.165 (exc)
linux	linux_kernel	From 5.10 (inc) to 5.10.252 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-415	The product calls free() twice on the same memory address.

Attack-Flow Graph

Executive Summary

This vulnerability is a double free issue in the Linux kernel's pruss_clk_mux_setup() function within the TI PRUSS subsystem.

Specifically, the function devm_add_action_or_reset() indirectly calls pruss_of_free_clk_provider(), which calls of_node_put(clk_mux_np) on an error path. After devm_add_action_or_reset() returns, of_node_put(clk_mux_np) is called again, causing the same resource to be freed twice.

The fix involves returning directly to avoid calling of_node_put() a second time, thus preventing the double free.

Impact Analysis

This vulnerability involves a double free error in the Linux kernel's pruss_clk_mux_setup() function. A double free can potentially lead to memory corruption, which might be exploited to cause system instability or crashes.

However, the CVE description does not provide specific details on the impact beyond the double free issue, such as whether it can be exploited for privilege escalation or remote code execution.

Mitigation Strategies

The vulnerability is fixed in the Linux kernel by correcting the double free issue in the pruss_clk_mux_setup() function. To mitigate this vulnerability, you should update your Linux kernel to a version that includes this fix.

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