CVE-2026-90215
mtd: ubi: Release device reference on busy detach
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: mtd: ubi: Release device reference on busy detach ubi_detach_mtd_dev() obtains a device reference through ubi_get_device() before checking whether the UBI device is busy. The busy return path drops ubi->ref_count but leaves the device reference held, so the device object cannot be released after a later detach. Drop the device reference before returning -EBUSY.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
7e84c961b2eb062d2f47037dcca52dcd1d3615b5 < 87812858c4c8df979cb70bcd0040b925a543df6f 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 < e065960366b55ab21e6c643c30dec2a41451900b 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 < 851c5e9a829d56cb0982965f07ef8966a6722884 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 < 31dd710cd84d5dd63c49f640d3a9f36c9699ca95
Linux / Linux
6.9
References
git.kernel.org: https://git.kernel.org/stable/c/87812858c4c8df979cb70bcd0040b925a543df6f git.kernel.org: https://git.kernel.org/stable/c/e065960366b55ab21e6c643c30dec2a41451900b git.kernel.org: https://git.kernel.org/stable/c/851c5e9a829d56cb0982965f07ef8966a6722884 git.kernel.org: https://git.kernel.org/stable/c/31dd710cd84d5dd63c49f640d3a9f36c9699ca95