CVE-2021-47504

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47504", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "REJECTED", "assignerShortName": "Linux", "dateReserved": "2024-05-22T06:20:56.205Z", "datePublished": "2024-05-24T15:01:51.013Z", "dateUpdated": "2026-08-11T02:06:38.226Z", "dateRejected": "2026-08-11T02:06:38.226Z"}, "containers": {"cna": {"rejectedReasons": [{"lang": "en", "value": "This CVE ID has been rejected or withdrawn by its CVE Numbering Authority."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-11T02:06:38.226Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47504", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "REJECTED", "assignerShortName": "Linux", "dateReserved": "2024-05-22T06:20:56.205Z", "datePublished": "2024-05-24T15:01:51.013Z", "dateUpdated": "2026-08-11T02:06:38.226Z", "dateRejected": "2026-08-11T02:06:38.226Z"}, "containers": {"cna": {"rejectedReasons": [{"lang": "en", "value": "This CVE ID has been rejected or withdrawn by its CVE Numbering Authority."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-11T02:06:38.226Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority."}], "id": "CVE-2021-47504", "lastModified": "2026-10-18T01:10:00.117", "metrics": {}, "published": "2024-05-24T15:15:10.773", "references": [], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Rejected"}

{"bugzilla": {"description": "kernel: io_uring: ensure task_work gets run as part of cancelations", "id": "2283450", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2283450"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nio_uring: ensure task_work gets run as part of cancelations\nIf we successfully cancel a work item but that work item needs to be\nprocessed through task_work, then we can be sleeping uninterruptibly\nin io_uring_cancel_generic() and never process it. Hence we don't\nmake forward progress and we end up with an uninterruptible sleep\nwarning.\nWhile in there, correct a comment that should be IFF, not IIF."], "name": "CVE-2021-47504", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47504\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47504"], "threat_severity": "Low"}

{"created": "2025-07-13T11:14:53.323189+00:00", "updated": "2025-07-13T11:14:53.323270+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}