CVE-2026-90215

Source
https://cve.org/CVERecord?id=CVE-2026-90215
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90215.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90215
Downstream
Published
2026-09-17T16:07:28Z
Modified
2026-09-19T03:47:25Z
Summary
mtd: ubi: Release device reference on busy detach
Details

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.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90215.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7e84c961b2eb062d2f47037dcca52dcd1d3615b5
Fixed
87812858c4c8df979cb70bcd0040b925a543df6f
Fixed
e065960366b55ab21e6c643c30dec2a41451900b
Fixed
851c5e9a829d56cb0982965f07ef8966a6722884
Fixed
31dd710cd84d5dd63c49f640d3a9f36c9699ca95

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90215.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.9.0
Fixed
6.12.110
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.52
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.6

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90215.json"