{"id":"ASB-A-169505929","details":"In ib_prctl_set of bugs.c, there is a possible way to re-enable indirect branch speculation due to a permissions bypass. This could lead to local information disclosure via a Spectre v2 attack with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-169505929","CVE-2020-10768"],"modified":"2026-05-25T16:46:24.913870386Z","published":"2021-10-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-10-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf"}],"affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2021-10-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"fixes":["https://android.googlesource.com/kernel/common/+/4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf"],"spl":"2021-10-05","types":["ID"],"severity":"High","vanir_signatures":[{"signature_type":"Function","signature_version":"v1","id":"ASB-A-169505929-8ef931fc","target":{"file":"arch/x86/kernel/cpu/bugs.c","function":"ib_prctl_set"},"source":"https://android.googlesource.com/kernel/common/+/4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf","deprecated":false,"digest":{"length":949,"function_hash":"337582401683084583128489187843894130475"}},{"signature_type":"Line","signature_version":"v1","id":"ASB-A-169505929-e316d259","target":{"file":"arch/x86/kernel/cpu/bugs.c"},"source":"https://android.googlesource.com/kernel/common/+/4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf","deprecated":false,"digest":{"line_hashes":["96293375478824141631754960072640988953","36152342845344979984605625203388829799","8460226663272733964146612779976990208","138461365038257326585673897414895695562","47823671850491995274274841138110324739","237551085397149107198675647758349576371"],"threshold":0.9}}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-169505929.json"}}],"schema_version":"1.7.5"}