"value":"arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected."
}
]
},
"problemtype":{
"problemtype_data":[
{
"description":[
{
"lang":"eng",
"value":"n/a"
}
]
}
]
},
"references":{
"reference_data":[
{
"refsource":"UBUNTU",
"name":"USN-4031-1",
"url":"https://usn.ubuntu.com/4031-1/"
},
{
"refsource":"MLIST",
"name":"[oss-security] 20190625 CVE-2019-12817: Linux kernel: powerpc: Unrelated processes may be able to read/write to each other's virtual memory",