{"id":"ASB-A-233972091","details":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma-\u003evm_page_prot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploited","aliases":["A-233972091","CVE-2022-20239","U-1883877"],"modified":"2026-05-01T15:24:27.653932Z","published":"2022-08-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2022-08-01"}],"affected":[{"package":{"name":":unknown:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"SoCVersion:0"},{"fixed":"SoCVersion:2022-08-05"}]}],"versions":["SoCVersion"],"ecosystem_specific":{"spl":"2022-08-05","severity":"High","types":["EoP"]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-233972091.json"}}],"schema_version":"1.7.5"}