In the Linux kernel, the following vulnerability has been resolved: scsi: megaraidsas: Fix for a potential deadlock This fixes a 'possible circular locking dependency detected' warning CPU0 CPU1 ---- ---- lock(&instance->resetmutex); lock(&shost->scanmutex); lock(&instance->resetmutex); lock(&shost->scanmutex); Fix this by temporarily releasing the resetmutex.