{"id":"CVE-2026-90216","published":"2026-09-17T17:17:16.900","lastModified":"2026-09-17T17:17:16.900","description":"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= 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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/4417ab6ecad01cf2d01045ef8104c95a66b0e893","tags":[]},{"url":"https://git.kernel.org/stable/c/552e565ed8846e7db143e4a6bdf3f5677453c686","tags":[]},{"url":"https://git.kernel.org/stable/c/5b0a6b554e12a97f9771a9a9f4ea1f5457373c73","tags":[]},{"url":"https://git.kernel.org/stable/c/6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5","tags":[]},{"url":"https://git.kernel.org/stable/c/83c978921688af40dcab6db74882d1ff9b0b765c","tags":[]},{"url":"https://git.kernel.org/stable/c/87b3da4acb860605643ebee312178f13b20744cf","tags":[]},{"url":"https://git.kernel.org/stable/c/9754f049d5f1945d4c691d1f52824eb8daf8f9be","tags":[]},{"url":"https://git.kernel.org/stable/c/e3f7e58189bc222971ddc860f1716f37e51ba996","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}