{"id":"CVE-2026-90216","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix rollback for explicit UBI device numbers\n\nubi_init_attach() rolls back module initialization failures by scanning\nubi_devices[0..i-1], where i is the mtd= para…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix rollback for explicit UBI device numbers\n\nubi_init_attach() rolls back module initialization failures by scanning\nubi_devices[0..i-1], where i is the mtd= para…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < 83c978921688af40dcab6db74882d1ff9b0b765c","Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < 6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5","Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < 4417ab6ecad01cf2d01045ef8104c95a66b0e893","Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < 552e565ed8846e7db143e4a6bdf3f5677453c686","Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < 9754f049d5f1945d4c691d1f52824eb8daf8f9be","Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < e3f7e58189bc222971ddc860f1716f37e51ba996","Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < 87b3da4acb860605643ebee312178f13b20744cf","Linux >= 83ff59a066637a6c28844bbf43009459408240f4 < 5b0a6b554e12a97f9771a9a9f4ea1f5457373c73","Linux 3.11"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:16.900","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90216","references":[{"url":"https://git.kernel.org/stable/c/4417ab6ecad01cf2d01045ef8104c95a66b0e893","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/552e565ed8846e7db143e4a6bdf3f5677453c686","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5b0a6b554e12a97f9771a9a9f4ea1f5457373c73","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/83c978921688af40dcab6db74882d1ff9b0b765c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/87b3da4acb860605643ebee312178f13b20744cf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9754f049d5f1945d4c691d1f52824eb8daf8f9be","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e3f7e58189bc222971ddc860f1716f37e51ba996","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.856Z","epss":0.00177,"epssPercentile":0.07461,"slug":"CVE-2026-90216","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix rollback for explicit UBI device numbers\n\nubi_init_attach() rolls back module initialization failures by scanning\nubi_devices[0..i-1], where i is the mtd= parameter index. That assumes\nthe parameter index matches the UBI device number.\n\nThat assumption is not true when mtd= specifies an explicit ubi_num. A\nsuccessfully attached device can be stored at a higher ubi_devices[]\nslot, and a later failure can miss it during rollback.\n\nScan the full ubi_devices[] array and detach by the actual array index,\nmatching the way UBI devices are stored.\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":[]}