CVE-2026-43196 soc: ti: pruss: Fix double free in pruss_clk_mux_setup()
A double free vulnerability in the TI PRUSS kernel driver allows local attackers to cause a system crash or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-43196?
CVE-2026-43196 is a high-severity use after free vulnerability in Linux kernel, published on 6 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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().
Weakness: CWE-415
Which versions are affected by CVE-2026-43196?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43196?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-43196 being exploited?
There is no known exploitation of CVE-2026-43196 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43196, DEBIAN-CVE-2026-43196, GHSA-8h7q-934r-3xxv, ROOT-OS-DEBIAN-11-CVE-2026-43196, ROOT-OS-UBUNTU-2204-CVE-2026-43196, ROOT-OS-UBUNTU-2404-CVE-2026-43196 and 1 more.