{"id":"ASB-A-155756045","details":"In dma_buf_release of dma-buf.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-155756045","CVE-2021-0707"],"modified":"2026-05-22T15:55:21.353668239Z","published":"2022-04-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2022-04-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/6e6c15288df8c4c6264f394ece251ef9f64b0e3f"}],"affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2022-04-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"vanir_signatures":[{"signature_type":"Line","signature_version":"v1","id":"ASB-A-155756045-508471ff","target":{"file":"drivers/dma-buf/dma-buf.c"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["82945802222134333908791421654857536839","19127304078615886264485522144236062199","88933969644631599874421297430567268435","289189136440764919026157444092562251182","245681061489948476386890732050665850411","153026179307233650232946407802658700875","196112623073218067140441805437754837664","238940983413991401835007672238974488220","205829250603208589738977471201136261853","21168457691085540039233751093771961233","207363771351754171548141024381916588498","58676797246452575214330101084909348292","263011834459981128819472762533559309019"]},"source":"https://android.googlesource.com/kernel/common/+/6e6c15288df8c4c6264f394ece251ef9f64b0e3f"},{"signature_type":"Function","signature_version":"v1","id":"ASB-A-155756045-93391707","target":{"function":"dma_buf_release","file":"drivers/dma-buf/dma-buf.c"},"deprecated":false,"digest":{"function_hash":"256706032848568622115479680309527026414","length":467},"source":"https://android.googlesource.com/kernel/common/+/6e6c15288df8c4c6264f394ece251ef9f64b0e3f"}],"spl":"2022-04-05","severity":"High","fixes":["https://android.googlesource.com/kernel/common/+/6e6c15288df8c4c6264f394ece251ef9f64b0e3f"],"types":["EoP"]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-155756045.json"}}],"schema_version":"1.7.5"}