CVE-2026-23256

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"vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanup\n\nIn setup_nic_devices(), the initialization loop jumps to the label\nsetup_nic_dev_free on failure. The current cleanup loop while(i--)\nskip the failing index i, causing a memory leak.\n\nFix this by changing the loop to iterate from the current index i\ndown to 0.\n\nCompile tested only. Issue found using code review."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: liquidio: Correcci\u00f3n de error de uno en la limpieza de VF setup_nic_devices()\n\nEn setup_nic_devices(), el bucle de inicializaci\u00f3n salta a la etiqueta setup_nic_dev_free en caso de fallo. El bucle de limpieza actual while(i--) omite el \u00edndice i que falla, causando una fuga de memoria.\n\nEsto se corrige cambiando el bucle para que itere desde el \u00edndice actual i hasta 0.\n\nSolo probado en compilaci\u00f3n. Problema encontrado mediante revisi\u00f3n de c\u00f3digo."}], "id": "CVE-2026-23256", "lastModified": "2026-11-05T22:18:09.477", "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-2026-23256", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T21:23:48.522553Z", "version": "2.0.3"}}]}, "published": "2026-03-18T18:16:23.817", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/01fbca1e93ec3f39f76c31a8f9afa32ce00da48a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3bf519e39b51cb08a93c0599870b35a23db1031e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4640fa5ad5e1a0dbd1c2d22323b7d70a8107dcfd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52b19b3a22306fe452ec9e8ff96063f4bfb77b99"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6cbba46934aefdfb5d171e0a95aec06c24f7ca30"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/71a56b89203ec7e5670d94a61a9b4ae617eca804"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bd680e56e316be92c01568be98d85d7a6c9bd92c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanup", "id": "2448693", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448693"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2026-23256", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "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": "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": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23256\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23256\nhttps://lore.kernel.org/linux-cve-announce/2026031818-CVE-2026-23256-b93b@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[846b46873eeb3baf40f7e6d8fe8f98aec95e7727,bd680e56e316be92c01568be98d85d7a6c9bd92c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[846b46873eeb3baf40f7e6d8fe8f98aec95e7727,01fbca1e93ec3f39f76c31a8f9afa32ce00da48a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[846b46873eeb3baf40f7e6d8fe8f98aec95e7727,71a56b89203ec7e5670d94a61a9b4ae617eca804)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[846b46873eeb3baf40f7e6d8fe8f98aec95e7727,3bf519e39b51cb08a93c0599870b35a23db1031e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[846b46873eeb3baf40f7e6d8fe8f98aec95e7727,52b19b3a22306fe452ec9e8ff96063f4bfb77b99)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[846b46873eeb3baf40f7e6d8fe8f98aec95e7727,4640fa5ad5e1a0dbd1c2d22323b7d70a8107dcfd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[846b46873eeb3baf40f7e6d8fe8f98aec95e7727,6cbba46934aefdfb5d171e0a95aec06c24f7ca30)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.250,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.200,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.163,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.124,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.70,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.10,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-03-19T08:56:10.653540+00:00", "updated": "2026-05-21T02:00:11.536517+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}