{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47024", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-27T18:42:55.960Z", "datePublished": "2024-02-28T08:13:36.489Z", "dateUpdated": "2026-05-23T15:19:08.243Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:19:08.243Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: free queued packets when closing socket\n\nAs reported by syzbot [1], there is a memory leak while closing the\nsocket. We partially solved this issue with commit ac03046ece2b\n(\"vsock/virtio: free packets during the socket release\"), but we\nforgot to drain the RX queue when the socket is definitely closed by\nthe scheduled work.\n\nTo avoid future issues, let's use the new virtio_transport_remove_sock()\nto drain the RX queue before removing the socket from the af_vsock lists\ncalling vsock_remove_sock().\n\n[1] https://syzkaller.appspot.com/bug?extid=24452624fc4c571eedd9" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/vmw_vsock/virtio_transport_common.c" ], "versions": [ { "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8", "lessThan": "b605673b523fe33abeafb2136759bcbc9c1e6ebf", "status": "affected", "versionType": "git" }, { "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8", "lessThan": "27691665145e74a45034a9dccf1150cf1894763a", "status": "affected", "versionType": "git" }, { "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8", "lessThan": "37c38674ef2f8d7e8629e5d433c37d6c1273d16b", "status": "affected", "versionType": "git" }, { "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8", "lessThan": "8432b8114957235f42e070a16118a7f750de9d39", "status": "affected", "versionType": "git" }, { "version": "4ea082cd3c400cd5bb36a7beb7e441bf3e29350d", "status": "affected", "versionType": "git" }, { "version": "4e539fa2dec4db3405e47002f2878aa4a99eb68b", "status": "affected", "versionType": "git" }, { "version": "4af8a327aeba102aaa9b78f3451f725bc590b237", "status": "affected", "versionType": "git" }, { "version": "51adb8ebe8c1d80528fc2ea863cfea9d32d2c52b", "status": "affected", "versionType": "git" }, { "version": "7d29c9ad0ed525c1b10e29cfca4fb1eece1e93fb", "status": "affected", "versionType": "git" }, { "version": "4.9.179", "lessThan": "4.10", "status": "affected", "versionType": "semver" }, { "version": "4.14.122", "lessThan": "4.15", "status": "affected", "versionType": "semver" }, { "version": "4.19.46", "lessThan": "4.20", "status": "affected", "versionType": "semver" }, { "version": "5.0.19", "lessThan": "5.1", "status": "affected", "versionType": "semver" }, { "version": "5.1.5", "lessThan": "5.2", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/vmw_vsock/virtio_transport_common.c" ], "versions": [ { "version": "5.2", "status": "affected" }, { "version": "0", "lessThan": "5.2", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.37", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.11.21", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.12.4", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "5.10.37" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "5.11.21" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "5.12.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "5.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.179" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.122" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.19" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/b605673b523fe33abeafb2136759bcbc9c1e6ebf" }, { "url": "https://git.kernel.org/stable/c/27691665145e74a45034a9dccf1150cf1894763a" }, { "url": "https://git.kernel.org/stable/c/37c38674ef2f8d7e8629e5d433c37d6c1273d16b" }, { "url": "https://git.kernel.org/stable/c/8432b8114957235f42e070a16118a7f750de9d39" } ], "title": "vsock/virtio: free queued packets when closing socket", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-47024", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-03-05T18:00:51.887353Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:13:23.950Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.600Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/b605673b523fe33abeafb2136759bcbc9c1e6ebf", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/27691665145e74a45034a9dccf1150cf1894763a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/37c38674ef2f8d7e8629e5d433c37d6c1273d16b", "tags": [ "x_transferred" ] }, { "url": 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