{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-56550", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T14:03:05.989Z", "datePublished": "2024-12-27T14:22:52.403Z", "dateUpdated": "2026-05-23T15:55:38.550Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:55:38.550Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/stacktrace: Use break instead of return statement\n\narch_stack_walk_user_common() contains a return statement instead of a\nbreak statement in case store_ip() fails while trying to store a callchain\nentry of a user space process.\nThis may lead to a missing pagefault_enable() call.\n\nIf this happens any subsequent page fault of the process won't be resolved\nby the page fault handler and this in turn will lead to the process being\nkilled.\n\nUse a break instead of a return statement to fix this."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/s390/kernel/stacktrace.c"], "versions": [{"version": "ebd912ff9919a10609511383d94942362234c077", "lessThan": "20c26357826457dc7c8145297e60ddc012e18914", "status": "affected", "versionType": "git"}, {"version": "ebd912ff9919a10609511383d94942362234c077", "lessThan": "588a9836a4ef7ec3bfcffda526dfa399637e6cfc", "status": "affected", "versionType": "git"}, {"version": "dd69165ac3dc12d8550aeec3fc4439c084ded3d8", "status": "affected", "versionType": "git"}, {"version": "6.9.4", "lessThan": "6.10", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/s390/kernel/stacktrace.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.4", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "6.10", "versionEndExcluding": "6.12.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/20c26357826457dc7c8145297e60ddc012e18914"}, {"url": "https://git.kernel.org/stable/c/588a9836a4ef7ec3bfcffda526dfa399637e6cfc"}], "title": "s390/stacktrace: Use break instead of return statement", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1AD9A837-E824-444A-8442-914E09BE6199", "versionEndExcluding": "6.10", "versionStartIncluding": "6.9.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "913C4DF1-5AD7-4CE9-A213-19CEA358B3EE", "versionEndExcluding": "6.12.4", "versionStartIncluding": "6.10", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/stacktrace: Use break instead of return statement\n\narch_stack_walk_user_common() contains a return statement instead of a\nbreak statement in case store_ip() fails while trying to store a callchain\nentry of a user space process.\nThis may lead to a missing pagefault_enable() call.\n\nIf this happens any subsequent page fault of the process won't be resolved\nby the page fault handler and this in turn will lead to the process being\nkilled.\n\nUse a break instead of a return statement to fix this."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: s390/stacktrace: Utilizar break en lugar de la declaraci\u00f3n return arch_stack_walk_user_common() contiene una declaraci\u00f3n return en lugar de una declaraci\u00f3n break en caso de que store_ip() falle al intentar almacenar una entrada de cadena de llamadas de un proceso de espacio de usuario. Esto puede provocar que falte una llamada pagefault_enable(). Si esto sucede, el controlador de fallas de p\u00e1gina no resolver\u00e1 ninguna falla de p\u00e1gina posterior del proceso y esto, a su vez, provocar\u00e1 que se elimine el proceso. Utilice una declaraci\u00f3n break en lugar de una declaraci\u00f3n return para solucionar esto."}], "id": "CVE-2024-56550", "lastModified": "2025-10-08T13:58:23.500", "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"}]}, "published": "2024-12-27T15:15:13.737", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/20c26357826457dc7c8145297e60ddc012e18914"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/588a9836a4ef7ec3bfcffda526dfa399637e6cfc"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: s390/stacktrace: Use break instead of return statement", "id": "2334438", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334438"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ns390/stacktrace: Use break instead of return statement\narch_stack_walk_user_common() contains a return statement instead of a\nbreak statement in case store_ip() fails while trying to store a callchain\nentry of a user space process.\nThis may lead to a missing pagefault_enable() call.\nIf this happens any subsequent page fault of the process won't be resolved\nby the page fault handler and this in turn will lead to the process being\nkilled.\nUse a break instead of a return statement to fix this.", "A vulnerability was found in the arch_stack_walk_user_common() function in the Linux kernel's S390 stack trace component, where a logic error can cause a missing pagefault_enable() call. This occurs due to a return statement being used instead of a break, leading to unresolved page faults that can terminate the affected process."], "name": "CVE-2024-56550", "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": "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": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56550\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56550\nhttps://lore.kernel.org/linux-cve-announce/2024122701-CVE-2024-56550-68f3@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T22:15:46.401988+00:00", "updated": "2025-07-12T22:15:46.402046+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}