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).