{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23236", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.988Z", "datePublished": "2026-03-04T14:36:40.162Z", "dateUpdated": "2026-04-02T14:43:52.032Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-02T14:43:52.032Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: smscufx: properly copy ioctl memory to kernelspace\n\nThe UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from\nuserspace to kernelspace, and instead directly references the memory,\nwhich can cause problems if invalid data is passed from userspace. Fix\nthis all up by correctly copying the memory before accessing it within\nthe kernel."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/video/fbdev/smscufx.c"], "versions": [{"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "061cfeb560aa3ddc174153dbe5be9d0b55eb7248", "status": "affected", "versionType": "git"}, {"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "6167af934f956d3ae1e06d61f45cd0d1004bbe1a", "status": "affected", "versionType": "git"}, {"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "a0321e6e58facb39fe191caa0e52ed9aab6a48fe", "status": "affected", "versionType": "git"}, {"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "0634e8d650993602fc5b389ff7ac525f6542e141", "status": "affected", "versionType": "git"}, {"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "52917e265aa5f848212f60fc50fc504d8ef12866", "status": "affected", "versionType": "git"}, {"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "1c008ad0f0d1c1523902b9cdb08e404129677bfc", "status": "affected", "versionType": "git"}, {"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02", "status": "affected", "versionType": "git"}, {"version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "120adae7b42faa641179270c067864544a50ab69", "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/video/fbdev/smscufx.c"], "versions": [{"version": "3.2", "status": "affected"}, {"version": "0", "lessThan": "3.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.251", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.201", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.164", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.127", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.74", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.13", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.3", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0-rc1", "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": "3.2", "versionEndExcluding": "5.10.251"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.15.201"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.1.164"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.6.127"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.12.74"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.18.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.19.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.0-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/061cfeb560aa3ddc174153dbe5be9d0b55eb7248"}, {"url": "https://git.kernel.org/stable/c/6167af934f956d3ae1e06d61f45cd0d1004bbe1a"}, {"url": "https://git.kernel.org/stable/c/a0321e6e58facb39fe191caa0e52ed9aab6a48fe"}, {"url": "https://git.kernel.org/stable/c/0634e8d650993602fc5b389ff7ac525f6542e141"}, {"url": "https://git.kernel.org/stable/c/52917e265aa5f848212f60fc50fc504d8ef12866"}, {"url": "https://git.kernel.org/stable/c/1c008ad0f0d1c1523902b9cdb08e404129677bfc"}, {"url": "https://git.kernel.org/stable/c/f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02"}, {"url": "https://git.kernel.org/stable/c/120adae7b42faa641179270c067864544a50ab69"}], "title": "fbdev: smscufx: properly copy ioctl memory to kernelspace", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C8DBBBFC-9692-4C23-A5E0-8F01CB6789D1", "versionEndExcluding": "5.10.251", "versionStartIncluding": "3.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "600A89ED-86F2-48D8-BB7C-5EE7A8832FC5", "versionEndExcluding": "5.15.201", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6892F74B-3F14-4500-9652-24A2ECB04144", "versionEndExcluding": "6.1.164", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A9F36A3-A685-48A0-84B4-6217052BD058", "versionEndExcluding": "6.6.127", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C2968F55-D03F-42BE-A694-F0A37BC8CBE3", "versionEndExcluding": "6.12.74", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6BDEF9FB-423E-49F6-991B-9277CC3AF400", "versionEndExcluding": "6.18.13", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7853A337-FB2A-4E19-AB47-4E38343532AA", "versionEndExcluding": "6.19.3", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: smscufx: properly copy ioctl memory to kernelspace\n\nThe UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from\nuserspace to kernelspace, and instead directly references the memory,\nwhich can cause problems if invalid data is passed from userspace. Fix\nthis all up by correctly copying the memory before accessing it within\nthe kernel."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfbdev: smscufx: copiar correctamente la memoria ioctl al espacio del kernel\n\nEl ioctl UFX_IOCTL_REPORT_DAMAGE no copia correctamente los datos desde el espacio de usuario al espacio del kernel, y en su lugar referencia directamente la memoria, lo que puede causar problemas si se pasan datos inv\u00e1lidos desde el espacio de usuario. Soluciona todo esto copiando correctamente la memoria antes de acceder a ella dentro del kernel."}], "id": "CVE-2026-23236", "lastModified": "2026-04-02T15:16:24.923", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.5, "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"}]}, "published": "2026-03-04T15:16:14.173", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/061cfeb560aa3ddc174153dbe5be9d0b55eb7248"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0634e8d650993602fc5b389ff7ac525f6542e141"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/120adae7b42faa641179270c067864544a50ab69"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c008ad0f0d1c1523902b9cdb08e404129677bfc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52917e265aa5f848212f60fc50fc504d8ef12866"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6167af934f956d3ae1e06d61f45cd0d1004bbe1a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a0321e6e58facb39fe191caa0e52ed9aab6a48fe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: fbdev: smscufx: properly copy ioctl memory to kernelspace", "id": "2444387", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2444387"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2026-23236", "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": "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": "2026-03-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23236\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23236\nhttps://lore.kernel.org/linux-cve-announce/2026030440-CVE-2026-23236-b419@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,061cfeb560aa3ddc174153dbe5be9d0b55eb7248)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,0634e8d650993602fc5b389ff7ac525f6542e141)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,120adae7b42faa641179270c067864544a50ab69)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1c008ad0f0d1c1523902b9cdb08e404129677bfc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,52917e265aa5f848212f60fc50fc504d8ef12866)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,6167af934f956d3ae1e06d61f45cd0d1004bbe1a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a0321e6e58facb39fe191caa0e52ed9aab6a48fe)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02)"}}], "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": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.251,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.201,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.164,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.127,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.74,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.13,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.3,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0-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": "2026-03-04T21:03:23.612758+00:00", "updated": "2026-03-04T21:03:23.612902+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}