CVE-2026-43160

A flaw was found in the Linux kernel's macsmc driver. This vulnerability occurs because a mutex, a mechanism used to prevent simultaneous access to shared resources, within the struct apple_smc is not properly initialized in the apple_smc_probe() function. An uninitialized mutex can lead to occasional null pointer dereferences when apple_smc_read() is called. This can result in system instability or a Denial of Service (DoS).