Threats tagged 'ghsa-3mhv-m8g9-8q53'

A deadlock vulnerability in the Linux kernel SCSI subsystem was resolved by changing request allocation behavior in the error handler. The issue occurs when scsi_eh_lock_door() blocks waiting for a tag held by requeued commands during error recovery, causing a circular dependency and guaranteed deadlock on devices with a single driver tag. The fix prevents blocking by making request allocation fail immediately if no tag is available, allowing error recovery to complete and queues to restart normally.