A NULL pointer dereference issue was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU. It could occur in the megasas_command_cancelled() callback function in hw/scsi/megasas.c while dropping a SCSI request. A privileged guest user may exploit this issue to crash the QEMU process on the host, resulting in a denial of service condition.
Name: Cheolwoo Myung
This issue does not affect Red Hat Enterprise Linux, Red Hat OpenStack Platform and RHEL Advanced Virtualization, as the `qemu-kvm` package does not include support for the megasas-gen2 host bus adapter emulation.
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1910366]
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1910367]