{"id":"PUB-A-182986620","aliases":["A-182986620","CVE-2021-20268"],"modified":"2026-10-02T16:01:02.628087498Z","published":"2022-06-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2022-06-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/445019bbca5d8"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/613725436e69f"}],"affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2022-06-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"types":["EoP"],"vanir_signatures":[{"target":{"file":"kernel/bpf/devmap.c"},"deprecated":false,"digest":{"line_hashes":["224271779341836584501130754948349714607","92229284269141821792646573717887502490","126816014499918403457029828288562530451","233959831460480025586970663099386476069","228884921260169733007492656637653792754","294508419026932351642497618531107142618","333025206768154572710172437261073220043","34724429021817818601863700397066362431"],"threshold":0.9},"id":"PUB-A-182986620-0ec639ce","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/445019bbca5d8"},{"digest":{"length":246,"function_hash":"158752015894057262017355222044852646752"},"id":"PUB-A-182986620-26aa7b58","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/613725436e69f","target":{"function":"dev_map_create_hash","file":"kernel/bpf/devmap.c"},"deprecated":false},{"signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/445019bbca5d8","target":{"file":"net/core/sock_map.c"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["296431074735696328249914334826080526755","332323536088966946912722234292656755569","333567679048291978241630495734352275318","171592907232762113819537828037209958699"]},"id":"PUB-A-182986620-67a0e310"},{"target":{"function":"sock_map_alloc","file":"net/core/sock_map.c"},"deprecated":false,"digest":{"length":923,"function_hash":"128959015929748196438652331333974471475"},"id":"PUB-A-182986620-71bf0d8b","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/445019bbca5d8"},{"digest":{"line_hashes":["296431074735696328249914334826080526755","332323536088966946912722234292656755569","333567679048291978241630495734352275318","171592907232762113819537828037209958699"],"threshold":0.9},"id":"PUB-A-182986620-9d072c7b","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/613725436e69f","target":{"file":"net/core/sock_map.c"},"deprecated":false},{"target":{"file":"kernel/bpf/devmap.c"},"deprecated":false,"digest":{"line_hashes":["224271779341836584501130754948349714607","92229284269141821792646573717887502490","126816014499918403457029828288562530451","233959831460480025586970663099386476069","228884921260169733007492656637653792754","294508419026932351642497618531107142618","333025206768154572710172437261073220043","34724429021817818601863700397066362431"],"threshold":0.9},"id":"PUB-A-182986620-a921905c","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/613725436e69f"},{"signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/445019bbca5d8","target":{"file":"kernel/bpf/devmap.c","function":"dev_map_create_hash"},"deprecated":false,"digest":{"function_hash":"158752015894057262017355222044852646752","length":246},"id":"PUB-A-182986620-be4cdc4b","signature_type":"Function"},{"deprecated":false,"digest":{"function_hash":"280834453878211592563500784189886994899","length":1313},"id":"PUB-A-182986620-c0bc2701","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/445019bbca5d8","target":{"function":"dev_map_init_map","file":"kernel/bpf/devmap.c"}},{"target":{"function":"sock_map_alloc","file":"net/core/sock_map.c"},"deprecated":false,"digest":{"length":923,"function_hash":"128959015929748196438652331333974471475"},"id":"PUB-A-182986620-cf1121b4","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/613725436e69f"},{"source":"https://android.googlesource.com/kernel/common/+/613725436e69f","target":{"function":"dev_map_init_map","file":"kernel/bpf/devmap.c"},"deprecated":false,"digest":{"length":1313,"function_hash":"280834453878211592563500784189886994899"},"id":"PUB-A-182986620-f0b7cd9a","signature_type":"Function","signature_version":"v1"}],"fixes":["https://android.googlesource.com/kernel/common/+/445019bbca5d8","https://android.googlesource.com/kernel/common/+/613725436e69f"],"severity":"Moderate","spl":"2022-06-05"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-182986620.json"}}],"schema_version":"1.9.0"}