{"id":"CVE-2021-47360","state":"PUBLISHED","title":"binder: make sure fd closes complete","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.","publishedAt":"2024-05-21T15:03:29.234Z","updatedAt":"2026-05-23T15:19:48.545Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"aa2c274c279ff365a06a4cba263f04965895166e","versionType":"git"},{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"d5b0473707fa53b03a5db0256ce62b2874bddbc7","versionType":"git"},{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"b95483d8d94b41fa31a84c1d86710b7907a37621","versionType":"git"},{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"5fdb55c1ac9585eb23bb2541d5819224429e103d","versionType":"git"},{"version":"27564d8d5d12d2ff197055346069c6bdbe08a8c2","status":"affected","versionType":"git"},{"version":"4.20.1","status":"affected","lessThan":"4.21","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.0","versionType":"semver"},{"version":"5.4.150","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.70","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.14.9","status":"unaffected","lessThanOrEqual":"5.14.*","versionType":"semver"},{"version":"5.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]}],"references":["https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e","https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7","https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621","https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47360.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47360","state":"PUBLISHED","datePublished":"2024-05-21T15:03:29.234Z","dateUpdated":"2026-05-23T15:19:48.545Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-21T14:58:30.809Z"},"containers":{"cna":{"title":"binder: make sure fd closes complete","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"aa2c274c279ff365a06a4cba263f04965895166e","versionType":"git"},{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"d5b0473707fa53b03a5db0256ce62b2874bddbc7","versionType":"git"},{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"b95483d8d94b41fa31a84c1d86710b7907a37621","versionType":"git"},{"version":"80cd795630d6526ba729a089a435bf74a57af927","status":"affected","lessThan":"5fdb55c1ac9585eb23bb2541d5819224429e103d","versionType":"git"},{"version":"27564d8d5d12d2ff197055346069c6bdbe08a8c2","status":"affected","versionType":"git"},{"version":"4.20.1","status":"affected","lessThan":"4.21","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.0","versionType":"semver"},{"version":"5.4.150","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.70","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.14.9","status":"unaffected","lessThanOrEqual":"5.14.*","versionType":"semver"},{"version":"5.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e"},{"url":"https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7"},{"url":"https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621"},{"url":"https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:19:48.545Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.4.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.10.70"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.14.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-17T17:37:32.711122Z","id":"CVE-2021-47360","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-17T17:38:46.035Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T05:32:08.619Z"}}]}}}