CVE-2026-64385

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If SMB2_ioctl_init() fails before the next send, cleanup\nretains the previous buffer type and frees that response again.\n\nReset response bookkeeping before each attempt to prevent the stale free."}], "id": "CVE-2026-64385", "lastModified": "2026-10-19T21:17:34.997", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64385", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:39:57.224081Z", "version": "2.0.3"}}]}, "published": "2026-07-25T10:17:21.810", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0be4bc64882edaefaaee8d1e27d083643eb778e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/276c8efbc49f9303ac76d0d4deab7128581b0f3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/96fcfc8ae7359346156e492ca610e830d2649ad6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f9bbadb6c94583e3b4af1afc449bfceb1d1ddec9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fc65ffb4ef1bf540da16b17c225ae51091e07d72"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-415"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: smb: client: fix double-free in SMB2_ioctl() replay", "id": "2507035", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507035"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2026-64385", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "impact": "critical", "package_name": "erlang27", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64385\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64385\nhttps://lore.kernel.org/linux-cve-announce/2026072526-CVE-2026-64385-80b2@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[433042a91f9373241307725b52de573933ffedbf,0be4bc64882edaefaaee8d1e27d083643eb778e6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4f1fffa2376922f3d1d506e49c0fd445b023a28e,96fcfc8ae7359346156e492ca610e830d2649ad6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4f1fffa2376922f3d1d506e49c0fd445b023a28e,276c8efbc49f9303ac76d0d4deab7128581b0f3b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4f1fffa2376922f3d1d506e49c0fd445b023a28e,fc65ffb4ef1bf540da16b17c225ae51091e07d72)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4f1fffa2376922f3d1d506e49c0fd445b023a28e,f9bbadb6c94583e3b4af1afc449bfceb1d1ddec9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.32,6.6.145)"}}], "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": "semver", "value": "6.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,7.0.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.96,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.39,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "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": "2026-07-25T16:15:18.042556+00:00", "updated": "2026-09-04T23:00:17.085345+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416", "CWE-1185", "CWE-415"]}