{"schema_version":"1.9.0","id":"PUB-A-195082947","published":"2022-03-01T00:00:00Z","modified":"2026-09-10T15:43:18.983809180Z","aliases":["A-195082947","CVE-2021-37159"],"details":"In hso_free_net_device of net/usb/hso.c, there is a possible use after free bug. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2022-03-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"fixes":["https://android.googlesource.com/kernel/common/+/88b912e02d75b","https://android.googlesource.com/kernel/common/+/b10dd066ea063"],"severity":"Moderate","spl":"2022-03-05","types":["EoP"],"vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"298137499518198046083903344143831194390","length":1671},"id":"PUB-A-195082947-94280cbc","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/b10dd066ea063","target":{"file":"drivers/net/usb/hso.c","function":"hso_create_net_device"}},{"deprecated":false,"digest":{"line_hashes":["156282893777389539489004679344848890106","225117206975891230219727731613576980352","130233698345843230676753961208034863234","126929904214987551869022099334461746031","110077989494485997144708421745799580075","168318541572538511115501495027413516383","96587662042684001300105669062687269366","36447792687420169932546913197071659198","145583491195242609389987204402006427302","267093625285464366181271664894917707801","291698062750314684977066088732659534393"],"threshold":0.9},"id":"PUB-A-195082947-b195268e","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/b10dd066ea063","target":{"file":"drivers/net/usb/hso.c"}}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-195082947.json"}}],"references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2022-03-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/88b912e02d75b"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/b10dd066ea063"}]}