Bug 2467117 (CVE-2026-43196)

Summary: CVE-2026-43196 kernel: soc: ti: pruss: Fix double free in pruss_clk_mux_setup()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel, specifically within the PRUSS (Programmable Real-time Unit Subsystem) clock multiplexer setup. This vulnerability, a double free, occurs when the system attempts to release the same memory resource twice. This can lead to memory corruption, which a local attacker could potentially exploit to cause the system to crash, resulting in a denial of service (DoS).
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Description OSIDB Bzimport 2026-05-06 13:05:11 UTC 
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().
Comment 1 Keith Grant 2026-05-06 20:55:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050644-CVE-2026-43196-b9da@gregkh/T