{"id":"CVE-2021-47064","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix potential DMA mapping leak\n\nWith buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap\ncould potentially inherit a non-zero value from stack garbage.\nIf this happens, it will cause DMA mappings for MCU command frames to not be\nunmapped after completion","modified":"2026-03-13T05:18:00.328074Z","published":"2024-02-29T23:15:07.947Z","references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0c"},{"type":"FIX","url":"https://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08"},{"type":"FIX","url":"https://git.kernel.org/stable/c/9fa26701cd1fc4d932d431971efc5746325bdfce"},{"type":"FIX","url":"https://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccf"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.10"},{"fixed":"5.10.37"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.11.21"}]},{"events":[{"introduced":"5.12"},{"fixed":"5.12.4"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47064.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}