CVE-2023-53480

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Every structure\n that embeds a kobject needs a corresponding ktype.\n\nSo add sanity check to make sure kset->kobj.ktype is not NULL."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["lib/kobject.c"], "versions": [{"version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "lessThan": "039ec9db2d30032eafa365f5f89b30eca5322b05", "status": "affected", "versionType": "git"}, {"version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "lessThan": "964e025ceefdf75da46b0133d0c2790de451aeec", "status": "affected", "versionType": "git"}, {"version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "lessThan": "5df5829158513134ddcaf2184d9286eda7b0bb18", "status": "affected", "versionType": "git"}, {"version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "lessThan": "f3f6bf22a4f5ba649cf26ae4670de5c7f861bdef", "status": "affected", "versionType": "git"}, {"version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "lessThan": "48aebbe801e78a8932404c122ed0e880ccedc220", "status": "affected", "versionType": "git"}, {"version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "lessThan": "1a772881bc059c596d8ca587cbd2a233edce3d3b", "status": "affected", "versionType": "git"}, {"version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "lessThan": "4d0fe8c52bb3029d83e323c961221156ab98680b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["lib/kobject.c"], "versions": [{"version": "4.19", "status": "affected"}, {"version": "0", "lessThan": "4.19", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.295", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.257", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.197", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.133", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.55", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.5", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6", "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": "4.19", "versionEndExcluding": "4.19.295"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.4.257"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.10.197"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.15.133"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "6.1.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "6.5.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "6.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/039ec9db2d30032eafa365f5f89b30eca5322b05"}, {"url": "https://git.kernel.org/stable/c/964e025ceefdf75da46b0133d0c2790de451aeec"}, {"url": "https://git.kernel.org/stable/c/5df5829158513134ddcaf2184d9286eda7b0bb18"}, {"url": "https://git.kernel.org/stable/c/f3f6bf22a4f5ba649cf26ae4670de5c7f861bdef"}, {"url": "https://git.kernel.org/stable/c/48aebbe801e78a8932404c122ed0e880ccedc220"}, {"url": "https://git.kernel.org/stable/c/1a772881bc059c596d8ca587cbd2a233edce3d3b"}, {"url": "https://git.kernel.org/stable/c/4d0fe8c52bb3029d83e323c961221156ab98680b"}], "title": "kobject: Add sanity check for kset->kobj.ktype in kset_register()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-53480", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T20:22:04.676676Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-05T20:31:11.264Z"}}]}}

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Every structure\n that embeds a kobject needs a corresponding ktype.\n\nSo add sanity check to make sure kset->kobj.ktype is not NULL."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.295", "versionStartIncluding": "4.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.257", "versionStartIncluding": "4.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.197", "versionStartIncluding": "4.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.133", "versionStartIncluding": "4.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.55", "versionStartIncluding": "4.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.5.5", "versionStartIncluding": "4.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6", "versionStartIncluding": "4.19"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:45:48.153Z"}}}, "cveMetadata": {"cveId": "CVE-2023-53480", "state": "PUBLISHED", "dateUpdated": "2026-11-05T20:31:11.264Z", "dateReserved": "2025-10-01T11:39:39.402Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-10-01T11:42:48.919Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["lib/kobject.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "039ec9db2d30032eafa365f5f89b30eca5322b05", "status": "affected", "version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "versionType": "git"}, {"lessThan": "964e025ceefdf75da46b0133d0c2790de451aeec", "status": "affected", "version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "versionType": "git"}, {"lessThan": "5df5829158513134ddcaf2184d9286eda7b0bb18", "status": "affected", "version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "versionType": "git"}, {"lessThan": "f3f6bf22a4f5ba649cf26ae4670de5c7f861bdef", "status": "affected", "version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "versionType": "git"}, {"lessThan": "48aebbe801e78a8932404c122ed0e880ccedc220", "status": "affected", "version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "versionType": "git"}, {"lessThan": "1a772881bc059c596d8ca587cbd2a233edce3d3b", "status": "affected", "version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "versionType": "git"}, {"lessThan": "4d0fe8c52bb3029d83e323c961221156ab98680b", "status": "affected", "version": "5f81880d5204ee2388fd9a75bb850ccd526885b7", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["lib/kobject.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.19"}, {"lessThan": "4.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.295", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.257", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.197", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.133", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.55", "versionType": "semver"}, {"lessThanOrEqual": "6.5.*", "status": "unaffected", "version": "6.5.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.6", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BC2C962D-AE94-4DD3-830F-8F1275371161", "versionEndExcluding": "4.19.295", "versionStartIncluding": "4.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "834BD148-28EC-43A4-A4F5-458124A1E39F", "versionEndExcluding": "5.4.257", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FD17EA9A-DF74-4876-AADC-C204F0716961", "versionEndExcluding": "5.10.197", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "21236FF3-9B2C-4C1A-8780-BC5BCA44AA51", "versionEndExcluding": "5.15.133", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0EFCF8E8-5528-46B9-8C17-B09792899CE0", "versionEndExcluding": "6.1.55", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8CF71E85-DA24-4925-95C5-E5C15DA71AE6", "versionEndExcluding": "6.5.5", "versionStartIncluding": "6.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkobject: Add sanity check for kset->kobj.ktype in kset_register()\n\nWhen I register a kset in the following way:\n\tstatic struct kset my_kset;\n\tkobject_set_name(&my_kset.kobj, \"my_kset\");\n ret = kset_register(&my_kset);\n\nA null pointer dereference exception is occurred:\n[ 4453.568337] Unable to handle kernel NULL pointer dereference at \\\nvirtual address 0000000000000028\n... ...\n[ 4453.810361] Call trace:\n[ 4453.813062] kobject_get_ownership+0xc/0x34\n[ 4453.817493] kobject_add_internal+0x98/0x274\n[ 4453.822005] kset_register+0x5c/0xb4\n[ 4453.825820] my_kobj_init+0x44/0x1000 [my_kset]\n... ...\n\nBecause I didn't initialize my_kset.kobj.ktype.\n\nAccording to the description in Documentation/core-api/kobject.rst:\n - A ktype is the type of object that embeds a kobject. Every structure\n that embeds a kobject needs a corresponding ktype.\n\nSo add sanity check to make sure kset->kobj.ktype is not NULL."}], "id": "CVE-2023-53480", "lastModified": "2026-11-05T21:17:22.357", "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-2023-53480", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:22:04.676676Z", "version": "2.0.3"}}]}, "published": "2025-10-01T12:15:50.600", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/039ec9db2d30032eafa365f5f89b30eca5322b05"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1a772881bc059c596d8ca587cbd2a233edce3d3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/48aebbe801e78a8932404c122ed0e880ccedc220"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4d0fe8c52bb3029d83e323c961221156ab98680b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5df5829158513134ddcaf2184d9286eda7b0bb18"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/964e025ceefdf75da46b0133d0c2790de451aeec"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f3f6bf22a4f5ba649cf26ae4670de5c7f861bdef"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: kobject: Add sanity check for kset->kobj.ktype in kset_register()", "id": "2400724", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400724"}, "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-2023-53480", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53480\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53480\nhttps://lore.kernel.org/linux-cve-announce/2025100112-CVE-2023-53480-95ab@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-02T08:39:47.015523+00:00", "updated": "2025-10-02T08:39:47.015579+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}