CVE-2021-47080

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47080", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-29T22:33:44.298Z", "datePublished": "2024-03-01T21:15:15.942Z", "dateUpdated": "2026-05-11T13:47:41.858Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:47:41.858Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff <49> f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n ib_uverbs_cmd_verbs+0x1546/0x1940\n ib_uverbs_ioctl+0x186/0x240\n __x64_sys_ioctl+0x38a/0x1220\n do_syscall_64+0x3f/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/uverbs_std_types_device.c"], "versions": [{"version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "lessThan": "66ab7fcdac34b890017f04f391507ef5b2b89a13", "status": "affected", "versionType": "git"}, {"version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "lessThan": "e6871b4270c05f8b212e7d98aee82b357972c80a", "status": "affected", "versionType": "git"}, {"version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "lessThan": "54d87913f147a983589923c7f651f97de9af5be1", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/uverbs_std_types_device.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.40", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.7", "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": "5.10", "versionEndExcluding": "5.10.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.12.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"}, {"url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"}, {"url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"}], "title": "RDMA/core: Prevent divide-by-zero error triggered by the user", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47080", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-04T20:26:31.423427Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:14:01.469Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:40.137Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:40.137Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47080", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-04T20:26:31.423427Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:14.880Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "RDMA/core: Prevent divide-by-zero error triggered by the user", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "lessThan": "66ab7fcdac34b890017f04f391507ef5b2b89a13", "versionType": "git"}, {"status": "affected", "version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "lessThan": "e6871b4270c05f8b212e7d98aee82b357972c80a", "versionType": "git"}, {"status": "affected", "version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "lessThan": "54d87913f147a983589923c7f651f97de9af5be1", "versionType": "git"}], "programFiles": ["drivers/infiniband/core/uverbs_std_types_device.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.40", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.12.7", "versionType": "semver", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/core/uverbs_std_types_device.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"}, {"url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"}, {"url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff <49> f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n ib_uverbs_cmd_verbs+0x1546/0x1940\n ib_uverbs_ioctl+0x186/0x240\n __x64_sys_ioctl+0x38a/0x1220\n do_syscall_64+0x3f/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.40", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.12.7", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.13", "versionStartIncluding": "5.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:47:41.858Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47080", "state": "PUBLISHED", "dateUpdated": "2026-05-11T13:47:41.858Z", "dateReserved": "2024-02-29T22:33:44.298Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-03-01T21:15:15.942Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/infiniband/core/uverbs_std_types_device.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "66ab7fcdac34b890017f04f391507ef5b2b89a13", "status": "affected", "version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "versionType": "git"}, {"lessThan": "e6871b4270c05f8b212e7d98aee82b357972c80a", "status": "affected", "version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "versionType": "git"}, {"lessThan": "54d87913f147a983589923c7f651f97de9af5be1", "status": "affected", "version": "9f85cbe50aa044a46f0a22fda323fa27b80c82da", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/infiniband/core/uverbs_std_types_device.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.40", "versionType": "semver"}, {"lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.7", "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": "FAEFD181-62CD-41CD-BFE5-7BC337ADE1CA", "versionEndExcluding": "5.10.40", "versionStartIncluding": "5.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E8F2CE30-38B0-4716-B12B-A139B0F9C5C9", "versionEndExcluding": "5.12.7", "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}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff <49> f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n ib_uverbs_cmd_verbs+0x1546/0x1940\n ib_uverbs_ioctl+0x186/0x240\n __x64_sys_ioctl+0x38a/0x1220\n do_syscall_64+0x3f/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: RDMA/core: evita el error de divisi\u00f3n por cero desencadenado por el usuario El usuario proporciona el tama\u00f1o de entrada de usuario y luego lo utiliza como denominador para calcular el n\u00famero de entradas. El cero proporcionado por el usuario activar\u00e1 el siguiente error de divisi\u00f3n por cero: error de divisi\u00f3n: 0000 [#1] SMP KASAN PTI CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281 Nombre de hardware: QEMU PC est\u00e1ndar (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 01/04/2014 RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510 C\u00f3digo: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff &lt;49&gt; f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b RSP: 0018:ffff88810416f828 EFLAGS: 00010246 RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d RDX: 0000000 000000000 RSI: ffff888105f2da00 RDI: 0000000000000000 RBP: ffff88810416fa98 R08: 00000000000000001 R09: ffffed102082df5f R10: ffff88810416faf7 R11: ffffed102082df5e R12 : 0000000000000000 R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0 FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000 ) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas: ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0 ib_uverbs_cmd_verbs+0x1546/0x1940 ib_uverbs_ioctl+0x186/0x240 __x64_sys_ioctl+0x38a/0x1220 do_syscall_64+0x3f /0x80 entrada_SYSCALL_64_after_hwframe+0x44/0xae"}], "id": "CVE-2021-47080", "lastModified": "2026-06-17T04:16:25.090", "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-2021-47080", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-03-04T20:26:31.423427Z", "version": "2.0.3"}}]}, "published": "2024-03-01T22:15:47.433", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:4356", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-348.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-09T00:00:00Z"}], "bugzilla": {"description": "kernel: RDMA/core: Prevent divide-by-zero error triggered by the user", "id": "2267533", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267533"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-369", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/core: Prevent divide-by-zero error triggered by the user\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\ndivide error: 0000 [#1] SMP KASAN PTI\nCPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nRIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\nCode: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff <49> f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\nRSP: 0018:ffff88810416f828 EFLAGS: 00010246\nRAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\nRDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\nRBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\nR10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\nR13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\nFS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\nib_uverbs_cmd_verbs+0x1546/0x1940\nib_uverbs_ioctl+0x186/0x240\n__x64_sys_ioctl+0x38a/0x1220\ndo_syscall_64+0x3f/0x80\nentry_SYSCALL_64_after_hwframe+0x44/0xae"], "name": "CVE-2021-47080", "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": "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": "2024-03-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47080\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47080\nhttps://lore.kernel.org/linux-cve-announce/2024030142-CVE-2021-47080-eb20@gregkh/T/#u"], "threat_severity": "Low"}

{}