{"id":"CVE-2021-47360","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-47360","generatedAt":"2026-10-27T17:45:50.944Z","title":"In the Linux kernel, the following vulnerability has been resolved: binder: make sure fd closes complete During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: make sure fd closes complete\n\nDuring BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object\ncleanup may close 1 or more fds. The close operations are\ncompleted using the task work mechanism -- which means the thread\nneeds to return to userspace or the file object may never be\ndereferenced -- which can lead to hung processes.\n\nForce the binder thread back to userspace if an fd is closed during\nBC_FREE_BUFFER handling.","published":"2024-05-21T15:15:22.000Z","lastModified":"2026-06-17T04:17:17.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-252"],"affected":["linux/linux kernel"],"epss":{"score":0.0025,"percentile":0.1616,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-47360","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}