{"id":"ASB-A-175451802","details":"In tiocspgrp of tty_jobctrl.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-175451802","CVE-2020-29661"],"modified":"2026-05-22T15:55:21.353668239Z","published":"2021-05-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-05-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/54ffccbf053b5b6ca4f6e45094b942fab92a25fc"}],"affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2021-05-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"types":["EoP"],"fixes":["https://android.googlesource.com/kernel/common/+/54ffccbf053b5b6ca4f6e45094b942fab92a25fc"],"severity":"High","spl":"2021-05-05","vanir_signatures":[{"id":"ASB-A-175451802-cde41775","target":{"file":"drivers/tty/tty_jobctrl.c"},"source":"https://android.googlesource.com/kernel/common/+/54ffccbf053b5b6ca4f6e45094b942fab92a25fc","signature_version":"v1","deprecated":false,"signature_type":"Line","digest":{"threshold":0.9,"line_hashes":["7338913957767132237580945162545283902","276140429312739768394680534261795675580","203989765631513543784047101143447013562","144040697814404936400616784663233098827","219487244008294298156309541912615923617","121723368273225809510853011269019301423","43185897151191301020763260751502390130"]}}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-175451802.json"}}],"schema_version":"1.7.5"}