CVE-2026-90215mtd: ubi: Release device reference on busy detach
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 before 87812858c4c8df979cb70bcd0040b925a543df6f; from 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 before e065960366b55ab21e6c643c30dec2a41451900b; from 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 before 851c5e9a829d56cb0982965f07ef8966a6722884; from 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 before 31dd710cd84d5dd63c49f640d3a9f36c9699ca95 | CNA record |
References
- https://git.kernel.org/stable/c/87812858c4c8df979cb70bcd0040b925a543df6f
- https://git.kernel.org/stable/c/e065960366b55ab21e6c643c30dec2a41451900b
- https://git.kernel.org/stable/c/851c5e9a829d56cb0982965f07ef8966a6722884
- https://git.kernel.org/stable/c/31dd710cd84d5dd63c49f640d3a9f36c9699ca95
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.