In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "5.0.1"
},
{
"introduced": "0"
},
{
"last_affected": "9.0"
},
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
}