CVE-2026-43196
soc: ti: pruss: Fix double free in pruss_clk_mux_setup()
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().
INFO
Published Date :
May 6, 2026, 12:16 p.m.
Last Modified :
May 6, 2026, 1:07 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Review and apply the kernel patch for pruss_clk_mux_setup.
- Ensure error handling avoids duplicate resource deallocation.
- Test the fix to confirm double free is resolved.
References to Advisories, Solutions, and Tools
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CVE-2026-43196.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-43196 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
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stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-43196
weaknesses.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 06, 2026
Action Type Old Value New Value Added 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(). Added Reference https://git.kernel.org/stable/c/04dbbb18cc9c8795c9ff47d8994bc03ebfef9d68 Added Reference https://git.kernel.org/stable/c/24c40076e3bc3d73c839c886d6bda1da6c4d9b93 Added Reference https://git.kernel.org/stable/c/69aa67c1e22d13e9aad4b08c86304ad8e743dcab Added Reference https://git.kernel.org/stable/c/80db65d4acfb9ff12d00172aed39ea8b98261aad Added Reference https://git.kernel.org/stable/c/818cf66d91c8ef09b01664a12d5f4ea786d64396 Added Reference https://git.kernel.org/stable/c/b7db9953c2f8da37de498198623b05b46f8e2ca0 Added Reference https://git.kernel.org/stable/c/dbda01bf2dfe5af33163e1e5fca1b82b619c2803 Added Reference https://git.kernel.org/stable/c/e113339cc7d23be4948891f3a702e9dce5b47035