{"id":"PUB-A-195607566", "published":"2021-12-01T00:00:00Z", "modified":"2026-07-09T15:25:53.339171538Z", "aliases":["CVE-2021-39638", "A-195607566"], "details":"In periodic_io_work_func of lwis_periodic_io.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.", "affected":[{"package":{"name":":unknown:", "ecosystem":"Android"}, "ranges":[{"type":"ECOSYSTEM", "events":[{"introduced":"Pixel-family specific:0"}, {"fixed":"Pixel-family specific:2021-12-05"}]}], "versions":["Pixel-family specific"], "ecosystem_specific":{"severity":"Moderate", "spl":"2021-12-05", "types":["EoP"]}}], "references":[{"type":"ADVISORY", "url":"https://source.android.com/security/bulletin/2021-12-01"}]}