CVE-2021-47143

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47143", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-04T18:12:48.844Z", "datePublished": "2024-03-25T09:07:41.075Z", "dateUpdated": "2026-05-11T13:48:53.055Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:48:53.055Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: remove device from smcd_dev_list after failed device_add()\n\nIf the device_add() for a smcd_dev fails, there's no cleanup step that\nrolls back the earlier list_add(). The device subsequently gets freed,\nand we end up with a corrupted list.\n\nAdd some error handling that removes the device from the list."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/smc/smc_ism.c"], "versions": [{"version": "c6ba7c9ba43de1b57e9a53946e7ff988554c84ed", "lessThan": "8b2cdc004d21a7255f219706dca64411108f7897", "status": "affected", "versionType": "git"}, {"version": "c6ba7c9ba43de1b57e9a53946e7ff988554c84ed", "lessThan": "40588782f1016c655ae1d302892f61d35af96842", "status": "affected", "versionType": "git"}, {"version": "c6ba7c9ba43de1b57e9a53946e7ff988554c84ed", "lessThan": "444d7be9532dcfda8e0385226c862fd7e986f607", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/smc/smc_ism.c"], "versions": [{"version": "4.19", "status": "affected"}, {"version": "0", "lessThan": "4.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.42", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.9", "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": "4.19", "versionEndExcluding": "5.10.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.12.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897"}, {"url": "https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842"}, {"url": "https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607"}], "title": "net/smc: remove device from smcd_dev_list after failed device_add()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:40.199Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47143", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:54:57.413915Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:14.760Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:40.199Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47143", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:54:57.413915Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:15.688Z"}}], "cna": {"title": "net/smc: remove device from smcd_dev_list after failed device_add()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "c6ba7c9ba43d", "lessThan": "8b2cdc004d21", "versionType": "git"}, {"status": "affected", "version": "c6ba7c9ba43d", "lessThan": "40588782f101", "versionType": "git"}, {"status": "affected", "version": "c6ba7c9ba43d", "lessThan": "444d7be9532d", "versionType": "git"}], "programFiles": ["net/smc/smc_ism.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.19"}, {"status": "unaffected", "version": "0", "lessThan": "4.19", "versionType": "custom"}, {"status": "unaffected", "version": "5.10.42", "versionType": "custom", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.12.9", "versionType": "custom", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/smc/smc_ism.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897"}, {"url": "https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842"}, {"url": "https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607"}], "x_generator": {"engine": "bippy-a5840b7849dd"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: remove device from smcd_dev_list after failed device_add()\n\nIf the device_add() for a smcd_dev fails, there's no cleanup step that\nrolls back the earlier list_add(). The device subsequently gets freed,\nand we end up with a corrupted list.\n\nAdd some error handling that removes the device from the list."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:02:51.734Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47143", "state": "PUBLISHED", "dateUpdated": "2024-09-11T17:33:14.760Z", "dateReserved": "2024-03-04T18:12:48.844Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-03-25T09:07:41.075Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/smc/smc_ism.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8b2cdc004d21a7255f219706dca64411108f7897", "status": "affected", "version": "c6ba7c9ba43de1b57e9a53946e7ff988554c84ed", "versionType": "git"}, {"lessThan": "40588782f1016c655ae1d302892f61d35af96842", "status": "affected", "version": "c6ba7c9ba43de1b57e9a53946e7ff988554c84ed", "versionType": "git"}, {"lessThan": "444d7be9532dcfda8e0385226c862fd7e986f607", "status": "affected", "version": "c6ba7c9ba43de1b57e9a53946e7ff988554c84ed", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/smc/smc_ism.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.19"}, {"lessThan": "4.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.42", "versionType": "semver"}, {"lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0F6057E7-740B-4F45-8807-C77ABBB77C96", "versionEndExcluding": "5.10.42", "versionStartIncluding": "4.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2C8A1D02-81A7-44E5-ACFD-CC6A6694F930", "versionEndExcluding": "5.12.9", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*", "matchCriteriaId": "96AC23B2-D46A-49D9-8203-8E1BEDCA8532", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*", "matchCriteriaId": "DA610E30-717C-4700-9F77-A3C9244F3BFD", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: remove device from smcd_dev_list after failed device_add()\n\nIf the device_add() for a smcd_dev fails, there's no cleanup step that\nrolls back the earlier list_add(). The device subsequently gets freed,\nand we end up with a corrupted list.\n\nAdd some error handling that removes the device from the list."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net/smc: eliminar dispositivo de smcd_dev_list despu\u00e9s de fallar device_add() Si falla el dispositivo_add() para smcd_dev, no hay ning\u00fan paso de limpieza que revierta el list_add() anterior. Posteriormente, el dispositivo se libera y terminamos con una lista corrupta. Agregue alg\u00fan manejo de errores que elimine el dispositivo de la lista."}], "id": "CVE-2021-47143", "lastModified": "2026-06-17T04:16:38.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47143", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:54:57.413915Z", "version": "2.0.3"}}]}, "published": "2024-03-25T09:15:08.900", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-459"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net/smc: remove device from smcd_dev_list after failed device_add()", "id": "2271479", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2271479"}, "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-455", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet/smc: remove device from smcd_dev_list after failed device_add()\nIf the device_add() for a smcd_dev fails, there's no cleanup step that\nrolls back the earlier list_add(). The device subsequently gets freed,\nand we end up with a corrupted list.\nAdd some error handling that removes the device from the list."], "name": "CVE-2021-47143", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-03-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47143\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47143\nhttps://lore.kernel.org/linux-cve-announce/2024032558-CVE-2021-47143-4f3c@gregkh/T"], "threat_severity": "Low"}

{}