{"id":"CVE-2026-45888","title":"md/raid1: fix memory leak in raid1_run()","summary":"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\n…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < c94fd6e8a71efd047ff36930e840f3c25679e136","Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < ec10e3dc93994b87adf7c759a4639fe34013989a","Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < b37588b0282a2b3cdda9db1d53712745ce66dea0","Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < 6abc7d5dcf0ee0f85e16e41c87fbd06231f28753","Linux 6.9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T15:43:37.059849Z"},"published":"2026-05-27","updated":"2026-11-06","sourceUpdated":"2026-11-06T15:53:10.955Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-45888","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"}],"tags":["cve.org"],"epss":0.0016,"epssPercentile":0.05182,"ingestedAt":"2026-11-06T16:57:43.391Z","slug":"CVE-2026-45888","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < c94fd6e8a71efd047ff36930e840f3c25679e136`\n- `Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < ec10e3dc93994b87adf7c759a4639fe34013989a`\n- `Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < b37588b0282a2b3cdda9db1d53712745ce66dea0`\n- `Linux >= 97894f7d3c2966164516a8a5109674763d3a55e1 < 6abc7d5dcf0ee0f85e16e41c87fbd06231f28753`\n- `Linux 6.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}