{"schema_version":"1.9.0","id":"ASB-A-213464034","published":"2022-05-01T00:00:00Z","modified":"2026-09-10T15:43:18.983809180Z","aliases":["A-213464034","CVE-2021-22600","PUB-A-213464034"],"details":"In packet_set_ring of af_packet.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2022-05-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"fixes":["https://android.googlesource.com/kernel/common/+/27fc5a7c6972bd73ac0cc0cf811ec2ecb989014f"],"severity":"Moderate","spl":"2022-05-05","types":["EoP"],"vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["56842754286908954858751883799803078452","333234908957074952355064169353376078837","307263399136416505205360331004710447305","189080069852238399985646265830191533788","240894796540615228570731438920408101816","123630893940014694020920663064138072003"],"threshold":0.9},"id":"ASB-A-213464034-307416a9","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/27fc5a7c6972bd73ac0cc0cf811ec2ecb989014f","target":{"file":"net/packet/af_packet.c"}},{"deprecated":false,"digest":{"function_hash":"83320058568458924176981676132243978100","length":3611},"id":"ASB-A-213464034-8c4be790","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/27fc5a7c6972bd73ac0cc0cf811ec2ecb989014f","target":{"file":"net/packet/af_packet.c","function":"packet_set_ring"}}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-213464034.json"}}],"references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2022-05-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/27fc5a7c6972bd73ac0cc0cf811ec2ecb989014f"}]}