{"schema_version":"1.9.0","id":"ASB-A-169505929","published":"2021-10-01T00:00:00Z","modified":"2026-09-08T15:39:03.104189951Z","aliases":["A-169505929","CVE-2020-10768"],"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.","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"],"severity":"High","spl":"2021-10-05","types":["ID"],"vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"337582401683084583128489187843894130475","length":949},"id":"ASB-A-169505929-8ef931fc","signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf","target":{"file":"arch/x86/kernel/cpu/bugs.c","function":"ib_prctl_set"}},{"deprecated":false,"digest":{"line_hashes":["96293375478824141631754960072640988953","36152342845344979984605625203388829799","8460226663272733964146612779976990208","138461365038257326585673897414895695562","47823671850491995274274841138110324739","237551085397149107198675647758349576371"],"threshold":0.9},"id":"ASB-A-169505929-e316d259","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf","target":{"file":"arch/x86/kernel/cpu/bugs.c"}}]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-169505929.json"}}],"references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-10-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf"}]}