Linux Kernel Deadlock Vulnerability in megaraid_sas SCSI Driver

A potential deadlock vulnerability has been identified in the Linux kernel's SCSI megaraid_sas driver. This issue arises from a circular locking dependency, where two CPUs can become stuck waiting for each other to release locks, potentially leading to a deadlock situation. The vulnerability has been addressed by modifying the locking mechanism to temporarily release one of the mutexes, preventing the circular dependency.

Impact

Exploitation of this vulnerability could lead to a deadlock situation, causing the system to hang as it gets stuck waiting for resources to be released.