{"api_version":"1","generated_at":"2026-04-22T21:38:44+00:00","cve":"CVE-2021-45868","urls":{"html":"https://cve.report/CVE-2021-45868","api":"https://cve.report/api/cve/CVE-2021-45868.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-45868","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-45868"},"summary":{"title":"CVE-2021-45868","description":"In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2022-03-18 07:15:00","updated_at":"2023-02-04 00:00:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9bf3d20331295b1ecb81f4ed9ef358c51699a050","name":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9bf3d20331295b1ecb81f4ed9ef358c51699a050","refsource":"MISC","tags":[],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.3","name":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.3","refsource":"MISC","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"https://security.netapp.com/advisory/ntap-20220419-0003/","name":"https://security.netapp.com/advisory/ntap-20220419-0003/","refsource":"CONFIRM","tags":[],"title":"February 2022 Linux Kernel 5.15.2 Vulnerabilities in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.openwall.com/lists/oss-security/2022/03/17/1","name":"https://www.openwall.com/lists/oss-security/2022/03/17/1","refsource":"MISC","tags":[],"title":"oss-security -  Linux Kernel 5.15-rc-ksmbd-part2 is affected by: Buffer Overflow. The impact is: use-after-free (local).","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://bugzilla.kernel.org/show_bug.cgi?id=214655","name":"https://bugzilla.kernel.org/show_bug.cgi?id=214655","refsource":"MISC","tags":[],"title":"214655 – BUG: unable to handle kernel paging request in __dquot_free_space","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.openwall.com/lists/oss-security/2022/03/17/2","name":"https://www.openwall.com/lists/oss-security/2022/03/17/2","refsource":"MISC","tags":[],"title":"oss-security - Re: Linux Kernel 5.15-rc-ksmbd-part2 is affected by:\n Buffer Overflow. The impact is: use-after-free (local).","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-45868","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45868","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h300e","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h300e_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h300s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h300s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h410c","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h410c_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h410s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h410s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h500e","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h500e_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h500s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h500s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h700e","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h700e_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h700s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"45868","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h700s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-45868","qid":"159777","title":"Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-9348)"},{"cve":"CVE-2021-45868","qid":"179607","title":"Debian Security Update for linux (CVE-2021-45868)"},{"cve":"CVE-2021-45868","qid":"199560","title":"Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6001-1)"},{"cve":"CVE-2021-45868","qid":"199568","title":"Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6013-1)"},{"cve":"CVE-2021-45868","qid":"199577","title":"Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6014-1)"},{"cve":"CVE-2021-45868","qid":"377053","title":"Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2022:0028)"},{"cve":"CVE-2021-45868","qid":"377181","title":"Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2022:0022)"},{"cve":"CVE-2021-45868","qid":"390261","title":"Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2022-0014)"},{"cve":"CVE-2021-45868","qid":"671804","title":"EulerOS Security Update for kernel (EulerOS-SA-2022-1844)"},{"cve":"CVE-2021-45868","qid":"671817","title":"EulerOS Security Update for kernel (EulerOS-SA-2022-1868)"},{"cve":"CVE-2021-45868","qid":"671862","title":"EulerOS Security Update for kernel (EulerOS-SA-2022-1896)"},{"cve":"CVE-2021-45868","qid":"671870","title":"EulerOS Security Update for kernel (EulerOS-SA-2022-1934)"},{"cve":"CVE-2021-45868","qid":"752036","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1183-1)"},{"cve":"CVE-2021-45868","qid":"752039","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1196-1)"},{"cve":"CVE-2021-45868","qid":"752042","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1197-1)"},{"cve":"CVE-2021-45868","qid":"752048","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1266-1)"},{"cve":"CVE-2021-45868","qid":"752052","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1255-1)"},{"cve":"CVE-2021-45868","qid":"752053","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1267-1)"},{"cve":"CVE-2021-45868","qid":"752056","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1270-1)"},{"cve":"CVE-2021-45868","qid":"752058","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1256-1)"},{"cve":"CVE-2021-45868","qid":"753373","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1257-1)"},{"cve":"CVE-2021-45868","qid":"753417","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1163-1)"},{"cve":"CVE-2021-45868","qid":"753427","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1407-1)"},{"cve":"CVE-2021-45868","qid":"753703","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0416-1)"},{"cve":"CVE-2021-45868","qid":"753707","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0416-1)"},{"cve":"CVE-2021-45868","qid":"753727","title":"SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0416-1)"},{"cve":"CVE-2021-45868","qid":"900766","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9078)"},{"cve":"CVE-2021-45868","qid":"901324","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9078-1)"},{"cve":"CVE-2021-45868","qid":"906201","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9078-2)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-45868","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://bugzilla.kernel.org/show_bug.cgi?id=214655","refsource":"MISC","name":"https://bugzilla.kernel.org/show_bug.cgi?id=214655"},{"refsource":"MISC","name":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9bf3d20331295b1ecb81f4ed9ef358c51699a050","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9bf3d20331295b1ecb81f4ed9ef358c51699a050"},{"refsource":"MISC","name":"https://www.openwall.com/lists/oss-security/2022/03/17/2","url":"https://www.openwall.com/lists/oss-security/2022/03/17/2"},{"refsource":"MISC","name":"https://www.openwall.com/lists/oss-security/2022/03/17/1","url":"https://www.openwall.com/lists/oss-security/2022/03/17/1"},{"refsource":"MISC","name":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.3","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.3"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20220419-0003/","url":"https://security.netapp.com/advisory/ntap-20220419-0003/"}]}},"nvd":{"publishedDate":"2022-03-18 07:15:00","lastModifiedDate":"2023-02-04 00:00:00","problem_types":["CWE-416"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.3","cpe_name":[]}]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"45868","Ordinal":"224246","Title":"CVE-2021-45868","CVE":"CVE-2021-45868","Year":"2021"},"notes":[]}}}