CVE-2024-41079

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This prevents leaking any data from the stack."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - nvmet is the in-kernel NVMe-over-Fabrics target; the leaked CQE is delivered to a remote initiator over RDMA (RoCEv2 over UDP/IP, iWARP over TCP, and soft-RoCE/siw over ordinary Ethernet are all IP-routable) on the standard NVMe-oF port. The defect itself is in transport-generic `nvmet_req_init()`, and NVMe-oF targets are explicitly network-facing services.\nAC:L - The leak is fully deterministic \u2014 establish an RDMA CM connection and send any command capsule, and the uninitialized 8-byte result field is returned every time. There is no race, no timing window, and no memory-layout precondition required to obtain the disclosure.\nPR:N - The response buffers are allocated directly from the RDMA CM connect request, and any command sent before Connect completes (`req->sq->ctrl == NULL`) is rejected by `nvmet_parse_connect_cmd()` and completed with the uninitialized CQE \u2014 no host NQN validation, no DH-HMAC-CHAP authentication, and no valid NVMe Connect is needed. This is a purely pre-authentication code path.\nUI:N - Exploitation requires only that the attacker connect to the exported NVMe-oF target and issue commands; no action by any local user or administrator is involved.\nS:U - The disclosed data and the vulnerable code are both within the target kernel's security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - Each response leaks 8 bytes of uninitialized kmalloc-16 slab memory, and the attacker controls the volume without bound \u2014 `hsqsize` is uncapped for I/O queues (up to ~131072 fresh CQEs per queue) and `nvmet_rdma_get_rsp()` allocates and frees a brand-new CQE per in-flight command past the free list, giving a repeatable spray-and-harvest oracle over recently-freed heap objects that readily yields kernel pointers and other sensitive residue.\nI:N - The bug only causes stale, non-attacker-chosen bytes to be emitted in the completion entry; no kernel data structure, file content, or target state is modified as a result.\nA:N - Reading uninitialized memory within a validly allocated 16-byte object causes no crash, hang, or resource exhaustion \u2014 the target continues operating normally while leaking."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/target/core.c", "drivers/nvme/target/fabrics-cmd-auth.c", "drivers/nvme/target/fabrics-cmd.c"], "versions": [{"version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "lessThan": "c6a2cf8b0764f3ba7d9bff58c8775a6d4476bb29", "status": "affected", "versionType": "git"}, {"version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "lessThan": "30d35b24b7957922f81cfdaa66f2e1b1e9b9aed2", "status": "affected", "versionType": "git"}, {"version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "lessThan": "10967873b80742261527a071954be8b54f0f8e4d", "status": "affected", "versionType": "git"}, {"version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "lessThan": "0990e8a863645496b9e3f91cfcfd63cd95c80319", "status": "affected", "versionType": "git"}, {"version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "lessThan": "cd0c1b8e045a8d2785342b385cb2684d9b48e426", "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/nvme/target/core.c", "drivers/nvme/target/fabrics-cmd-auth.c", "drivers/nvme/target/fabrics-cmd.c"], "versions": [{"version": "4.8", "status": "affected"}, {"version": "0", "lessThan": "4.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.101", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.42", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9.11", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10", "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": "4.8", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.1.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.6.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.9.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.10"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c6a2cf8b0764f3ba7d9bff58c8775a6d4476bb29"}, {"url": "https://git.kernel.org/stable/c/30d35b24b7957922f81cfdaa66f2e1b1e9b9aed2"}, {"url": "https://git.kernel.org/stable/c/10967873b80742261527a071954be8b54f0f8e4d"}, {"url": "https://git.kernel.org/stable/c/0990e8a863645496b9e3f91cfcfd63cd95c80319"}, {"url": "https://git.kernel.org/stable/c/cd0c1b8e045a8d2785342b385cb2684d9b48e426"}], "title": "nvmet: always initialize cqe.result", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/30d35b24b7957922f81cfdaa66f2e1b1e9b9aed2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/10967873b80742261527a071954be8b54f0f8e4d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0990e8a863645496b9e3f91cfcfd63cd95c80319", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/cd0c1b8e045a8d2785342b385cb2684d9b48e426", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:00:36.974Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-41079", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:21:11.653239Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:59.600Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/nvme/target/core.c", "drivers/nvme/target/fabrics-cmd-auth.c", "drivers/nvme/target/fabrics-cmd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c6a2cf8b0764f3ba7d9bff58c8775a6d4476bb29", "status": "affected", "version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "versionType": "git"}, {"lessThan": "30d35b24b7957922f81cfdaa66f2e1b1e9b9aed2", "status": "affected", "version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "versionType": "git"}, {"lessThan": "10967873b80742261527a071954be8b54f0f8e4d", "status": "affected", "version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "versionType": "git"}, {"lessThan": "0990e8a863645496b9e3f91cfcfd63cd95c80319", "status": "affected", "version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "versionType": "git"}, {"lessThan": "cd0c1b8e045a8d2785342b385cb2684d9b48e426", "status": "affected", "version": "a07b4970f464f13640e28e16dad6cfa33647cc99", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/nvme/target/core.c", "drivers/nvme/target/fabrics-cmd-auth.c", "drivers/nvme/target/fabrics-cmd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.8"}, {"lessThan": "4.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.209", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.101", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.42", "versionType": "semver"}, {"lessThanOrEqual": "6.9.*", "status": "unaffected", "version": "6.9.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BC2B5B53-6D0E-4FA7-B414-71D3FF089CAA", "versionEndExcluding": "6.1.101", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "972274A2-D688-4C37-BE42-689B58B4C225", "versionEndExcluding": "6.6.42", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "01E300B3-8B39-4A2D-8B03-4631433D3915", "versionEndExcluding": "6.9.11", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*", "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*", "matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: always initialize cqe.result\n\nThe spec doesn't mandate that the first two double words (aka results)\nfor the command queue entry need to be set to 0 when they are not\nused (not specified). Though, the target implemention returns 0 for TCP\nand FC but not for RDMA.\n\nLet's make RDMA behave the same and thus explicitly initializing the\nresult field. This prevents leaking any data from the stack."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvmet: inicializar siempre cqe.result La especificaci\u00f3n no exige que las dos primeras palabras dobles (tambi\u00e9n conocidas como resultados) para la entrada de la cola de comandos deban establecerse en 0 cuando no lo est\u00e1n usado (no especificado). Sin embargo, la implementaci\u00f3n de destino devuelve 0 para TCP y FC, pero no para RDMA. Hagamos que RDMA se comporte igual y as\u00ed inicialicemos expl\u00edcitamente el campo de resultado. Esto evita la fuga de datos de la pila."}], "id": "CVE-2024-41079", "lastModified": "2026-08-04T11:19:27.120", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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-2024-41079", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:21:11.653239Z", "version": "2.0.3"}}]}, "published": "2024-07-29T15:15:15.457", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0990e8a863645496b9e3f91cfcfd63cd95c80319"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/10967873b80742261527a071954be8b54f0f8e4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/30d35b24b7957922f81cfdaa66f2e1b1e9b9aed2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c6a2cf8b0764f3ba7d9bff58c8775a6d4476bb29"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cd0c1b8e045a8d2785342b385cb2684d9b48e426"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0990e8a863645496b9e3f91cfcfd63cd95c80319"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/10967873b80742261527a071954be8b54f0f8e4d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/30d35b24b7957922f81cfdaa66f2e1b1e9b9aed2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cd0c1b8e045a8d2785342b385cb2684d9b48e426"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: nvmet: always initialize cqe.result", "id": "2300456", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2300456"}, "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:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnvmet: always initialize cqe.result\nThe spec doesn't mandate that the first two double words (aka results)\nfor the command queue entry need to be set to 0 when they are not\nused (not specified). Though, the target implemention returns 0 for TCP\nand FC but not for RDMA.\nLet's make RDMA behave the same and thus explicitly initializing the\nresult field. This prevents leaking any data from the stack."], "name": "CVE-2024-41079", "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": "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-41079\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-41079\nhttps://lore.kernel.org/linux-cve-announce/2024072925-CVE-2024-41079-09c3@gregkh/T"], "threat_severity": "Low"}

{}