{"id":"CVE-2026-90215","published":"2026-09-17T17:17:16.790","lastModified":"2026-09-17T17:17:16.790","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: ubi: Release device reference on busy detach\n\nubi_detach_mtd_dev() obtains a device reference through ubi_get_device()\nbefore checking whether the UBI device is busy. The busy return path drops\nubi->ref_count but leaves the device reference held, so the device object\ncannot be released after a later detach.\n\nDrop the device reference before returning -EBUSY.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/31dd710cd84d5dd63c49f640d3a9f36c9699ca95","tags":[]},{"url":"https://git.kernel.org/stable/c/851c5e9a829d56cb0982965f07ef8966a6722884","tags":[]},{"url":"https://git.kernel.org/stable/c/87812858c4c8df979cb70bcd0040b925a543df6f","tags":[]},{"url":"https://git.kernel.org/stable/c/e065960366b55ab21e6c643c30dec2a41451900b","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}