Linux Kernel SCSI QLA2XXX Driver Scheduling While Atomic Vulnerability

A vulnerability in the Linux kernel's SCSI QLA2XXX driver can lead to a crash by improperly scheduling a call into the midlayer while in interrupt context. This issue arises when the driver attempts to delete a remote port, a process that can cause the thread to sleep, conflicting with the interrupt context and triggering a scheduling error. The vulnerability has been addressed by ensuring that the call is made in a non-interrupt context, where it is safer.

Impact

Exploitation of this vulnerability causes a kernel crash due to a scheduling error while atomic, disrupting normal operations and potentially leading to a denial of service.