{"api_version":"1","generated_at":"2026-07-23T13:46:54+00:00","cve":"CVE-2026-45888","urls":{"html":"https://cve.report/CVE-2026-45888","api":"https://cve.report/api/cve/CVE-2026-45888.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45888","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45888"},"summary":{"title":"md/raid1: fix memory leak in raid1_run()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: fix memory leak in raid1_run()\n\nraid1_run() calls setup_conf() which registers a thread via\nmd_register_thread(). If raid1_set_limits() fails, the previously\nregistered thread is not unregistered, resulting in a memory leak\nof the md_thread structure and the thread resource itself.\n\nAdd md_unregister_thread() to the error path to properly cleanup\nthe thread, which aligns with the error handling logic of other paths\nin this function.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:02","updated_at":"2026-06-25 21:13:31"},"problem_types":["CWE-401"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/6abc7d5dcf0ee0f85e16e41c87fbd06231f28753","name":"https://git.kernel.org/stable/c/6abc7d5dcf0ee0f85e16e41c87fbd06231f28753","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c94fd6e8a71efd047ff36930e840f3c25679e136","name":"https://git.kernel.org/stable/c/c94fd6e8a71efd047ff36930e840f3c25679e136","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ec10e3dc93994b87adf7c759a4639fe34013989a","name":"https://git.kernel.org/stable/c/ec10e3dc93994b87adf7c759a4639fe34013989a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b37588b0282a2b3cdda9db1d53712745ce66dea0","name":"https://git.kernel.org/stable/c/b37588b0282a2b3cdda9db1d53712745ce66dea0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45888","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45888","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97894f7d3c2966164516a8a5109674763d3a55e1 c94fd6e8a71efd047ff36930e840f3c25679e136 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97894f7d3c2966164516a8a5109674763d3a55e1 ec10e3dc93994b87adf7c759a4639fe34013989a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97894f7d3c2966164516a8a5109674763d3a55e1 b37588b0282a2b3cdda9db1d53712745ce66dea0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97894f7d3c2966164516a8a5109674763d3a55e1 6abc7d5dcf0ee0f85e16e41c87fbd06231f28753 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * 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the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: fix memory leak in raid1_run()\n\nraid1_run() calls setup_conf() which registers a thread via\nmd_register_thread(). If raid1_set_limits() fails, the previously\nregistered thread is not unregistered, resulting in a memory leak\nof the md_thread structure and the thread resource itself.\n\nAdd md_unregister_thread() to the error path to properly cleanup\nthe thread, which aligns with the error handling logic of other paths\nin this function.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:16:59.751Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c94fd6e8a71efd047ff36930e840f3c25679e136"},{"url":"https://git.kernel.org/stable/c/ec10e3dc93994b87adf7c759a4639fe34013989a"},{"url":"https://git.kernel.org/stable/c/b37588b0282a2b3cdda9db1d53712745ce66dea0"},{"url":"https://git.kernel.org/stable/c/6abc7d5dcf0ee0f85e16e41c87fbd06231f28753"}],"title":"md/raid1: fix memory leak in raid1_run()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45888","datePublished":"2026-05-27T12:16:59.751Z","dateReserved":"2026-05-13T15:03:33.082Z","dateUpdated":"2026-05-27T12:16:59.751Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:02","lastModifiedDate":"2026-06-25 21:13:31","problem_types":["CWE-401"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.12.75","matchCriteriaId":"F8A1C6F6-2847-4C53-ABFC-8F07D96900D2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.14","matchCriteriaId":"BF463CB7-1F58-4607-B847-77ED23E4B9B7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.4","matchCriteriaId":"672A3E79-EC03-479D-8503-361DFBDC8092"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45888","Ordinal":"1","Title":"md/raid1: fix memory leak in raid1_run()","CVE":"CVE-2026-45888","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45888","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: fix memory leak in raid1_run()\n\nraid1_run() calls setup_conf() which registers a thread via\nmd_register_thread(). If raid1_set_limits() fails, the previously\nregistered thread is not unregistered, resulting in a memory leak\nof the md_thread structure and the thread resource itself.\n\nAdd md_unregister_thread() to the error path to properly cleanup\nthe thread, which aligns with the error handling logic of other paths\nin this function.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.","Type":"Description","Title":"md/raid1: fix memory leak in raid1_run()"}]}}}