{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-38667", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-21T11:16:40.598Z", "datePublished": "2024-06-24T13:52:25.399Z", "dateUpdated": "2024-12-19T09:06:23.345Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:06:23.345Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: prevent pt_regs corruption for secondary idle threads\n\nTop of the kernel thread stack should be reserved for pt_regs. However\nthis is not the case for the idle threads of the secondary boot harts.\nTheir stacks overlap with their pt_regs, so both may get corrupted.\n\nSimilar issue has been fixed for the primary hart, see c7cdd96eca28\n(\"riscv: prevent stack corruption by reserving task_pt_regs(p) early\").\nHowever that fix was not propagated to the secondary harts. The problem\nhas been noticed in some CPU hotplug tests with V enabled. The function\nsmp_callin stored several registers on stack, corrupting top of pt_regs\nstructure including status field. As a result, kernel attempted to save\nor restore inexistent V context."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/riscv/kernel/cpu_ops_sbi.c", "arch/riscv/kernel/cpu_ops_spinwait.c"], "versions": [{"version": "2875fe0561569f82d0e63658ccf0d11ce7da8922", "lessThan": "ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e", "status": "affected", "versionType": "git"}, {"version": "2875fe0561569f82d0e63658ccf0d11ce7da8922", "lessThan": "3090c06d50eaa91317f84bf3eac4c265e6cb8d44", "status": "affected", "versionType": "git"}, {"version": "2875fe0561569f82d0e63658ccf0d11ce7da8922", "lessThan": "0c1f28c32a194303da630fca89481334b9547b80", "status": "affected", "versionType": "git"}, {"version": "2875fe0561569f82d0e63658ccf0d11ce7da8922", "lessThan": "a638b0461b58aa3205cd9d5f14d6f703d795b4af", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/riscv/kernel/cpu_ops_sbi.c", "arch/riscv/kernel/cpu_ops_spinwait.c"], "versions": [{"version": "5.7", "status": "affected"}, {"version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.93", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.33", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9.4", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e"}, {"url": "https://git.kernel.org/stable/c/3090c06d50eaa91317f84bf3eac4c265e6cb8d44"}, {"url": "https://git.kernel.org/stable/c/0c1f28c32a194303da630fca89481334b9547b80"}, {"url": "https://git.kernel.org/stable/c/a638b0461b58aa3205cd9d5f14d6f703d795b4af"}], "title": "riscv: prevent pt_regs corruption for secondary idle threads", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:12:26.094Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3090c06d50eaa91317f84bf3eac4c265e6cb8d44", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0c1f28c32a194303da630fca89481334b9547b80", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a638b0461b58aa3205cd9d5f14d6f703d795b4af", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-38667", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:08:46.656306Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:43.880Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C3821E00-CCBB-4CD4-AD2C-D47DFF2F5A34", "versionEndExcluding": "5.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7446FC33-DC4F-4D31-94B5-FB577CFA66F4", "versionEndExcluding": "6.1.93", "versionStartIncluding": "6.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "53BC60D9-65A5-4D8F-96C8-149F09214DBD", "versionEndExcluding": "6.6.33", "versionStartIncluding": "6.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A500F935-F0ED-4DC7-AD02-9D7C365D13AE", "versionEndExcluding": "6.9.4", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "C40DD2D9-90E3-4E95-9F1A-E7C680F11F2A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: prevent pt_regs corruption for secondary idle threads\n\nTop of the kernel thread stack should be reserved for pt_regs. However\nthis is not the case for the idle threads of the secondary boot harts.\nTheir stacks overlap with their pt_regs, so both may get corrupted.\n\nSimilar issue has been fixed for the primary hart, see c7cdd96eca28\n(\"riscv: prevent stack corruption by reserving task_pt_regs(p) early\").\nHowever that fix was not propagated to the secondary harts. The problem\nhas been noticed in some CPU hotplug tests with V enabled. The function\nsmp_callin stored several registers on stack, corrupting top of pt_regs\nstructure including status field. As a result, kernel attempted to save\nor restore inexistent V context."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: riscv: evita la corrupci\u00f3n de pt_regs para subprocesos inactivos secundarios La parte superior de la pila de subprocesos del kernel debe reservarse para pt_regs. Sin embargo, este no es el caso de los subprocesos inactivos de los corazones de arranque secundarios. Sus pilas se superponen con sus pt_regs, por lo que ambos pueden corromperse. Se ha solucionado un problema similar para el coraz\u00f3n principal; consulte c7cdd96eca28 (\"riscv: evite la corrupci\u00f3n de la pila reservando task_pt_regs(p) anticipadamente\"). Sin embargo, esa soluci\u00f3n no se propag\u00f3 a los corazones secundarios. El problema se ha observado en algunas pruebas de conexi\u00f3n en caliente de CPU con V habilitado. La funci\u00f3n smp_callin almacen\u00f3 varios registros en la pila, corrompiendo la parte superior de la estructura pt_regs, incluido el campo de estado. Como resultado, el kernel intent\u00f3 guardar o restaurar el contexto V inexistente."}], "id": "CVE-2024-38667", "lastModified": "2024-11-21T09:26:35.473", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "[email protected]", "type": "Primary"}]}, "published": "2024-06-24T14:15:12.790", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/0c1f28c32a194303da630fca89481334b9547b80"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/3090c06d50eaa91317f84bf3eac4c265e6cb8d44"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/a638b0461b58aa3205cd9d5f14d6f703d795b4af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/0c1f28c32a194303da630fca89481334b9547b80"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/3090c06d50eaa91317f84bf3eac4c265e6cb8d44"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/a638b0461b58aa3205cd9d5f14d6f703d795b4af"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: riscv: prevent pt_regs corruption for secondary idle threads", "id": "2294219", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2294219"}, "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-1260", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nriscv: prevent pt_regs corruption for secondary idle threads\nTop of the kernel thread stack should be reserved for pt_regs. However\nthis is not the case for the idle threads of the secondary boot harts.\nTheir stacks overlap with their pt_regs, so both may get corrupted.\nSimilar issue has been fixed for the primary hart, see c7cdd96eca28\n(\"riscv: prevent stack corruption by reserving task_pt_regs(p) early\").\nHowever that fix was not propagated to the secondary harts. The problem\nhas been noticed in some CPU hotplug tests with V enabled. The function\nsmp_callin stored several registers on stack, corrupting top of pt_regs\nstructure including status field. As a result, kernel attempted to save\nor restore inexistent V context.", "A vulnerability was found in the Linux kernel, affecting the RISC-V architecture. This issue may corrupt `pt_regs` (processor status registers) for secondary idle threads, which could lead to undefined behavior or system instability. This issue has been addressed in a kernel update to prevent such corruption, ensuring stability and reliability in idle thread management on RISC-V systems."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-38667", "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": "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": "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": "2024-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-38667\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-38667\nhttps://lore.kernel.org/linux-cve-announce/2024062431-CVE-2024-38667-83a6@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate", "upstream_fix": "kernel 6.1.93, kernel 6.6.33, kernel 6.9.4, kernel 6.10-rc2"}