Not yet scoredPublished Sep 17, 2026

CVE-2026-90216ubi: Fix rollback for explicit UBI device numbers

Updated under an hour ago (Oct 26, 2026, 6:10 PM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ubi: Fix rollback for explicit UBI device numbers ubi_init_attach() rolls back module initialization failures by scanning ubi_devices[0..i-1], where i is the mtd= parameter index. That assumes the parameter index matches the UBI device number. That assumption is not true when mtd= specifies an explicit ubi_num. A successfully attached device can be stored at a higher ubi_devices[] slot, and a later failure can miss it during rollback. Scan the full ubi_devices[] array and detach by the actual array index, matching the way UBI devices are stored.

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: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	83ff59a066637a6c28844bbf43009459408240f4 builds before 83c978921688af40dcab6db74882d1ff9b0b765c; 83ff59a066637a6c28844bbf43009459408240f4 builds before 6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5; from 83ff59a066637a6c28844bbf43009459408240f4 before 4417ab6ecad01cf2d01045ef8104c95a66b0e893; from 83ff59a066637a6c28844bbf43009459408240f4 before 552e565ed8846e7db143e4a6bdf3f5677453c686; from 83ff59a066637a6c28844bbf43009459408240f4 before 9754f049d5f1945d4c691d1f52824eb8daf8f9be; from 83ff59a066637a6c28844bbf43009459408240f4 before e3f7e58189bc222971ddc860f1716f37e51ba996; from 83ff59a066637a6c28844bbf43009459408240f4 before 87b3da4acb860605643ebee312178f13b20744cf; 83ff59a066637a6c28844bbf43009459408240f4 builds before 5b0a6b554e12a97f9771a9a9f4ea1f5457373c73	CNA record

References

References

https://git.kernel.org/stable/c/83c978921688af40dcab6db74882d1ff9b0b765c
https://git.kernel.org/stable/c/6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5
https://git.kernel.org/stable/c/4417ab6ecad01cf2d01045ef8104c95a66b0e893
https://git.kernel.org/stable/c/552e565ed8846e7db143e4a6bdf3f5677453c686
https://git.kernel.org/stable/c/9754f049d5f1945d4c691d1f52824eb8daf8f9be
https://git.kernel.org/stable/c/e3f7e58189bc222971ddc860f1716f37e51ba996
https://git.kernel.org/stable/c/87b3da4acb860605643ebee312178f13b20744cf
https://git.kernel.org/stable/c/5b0a6b554e12a97f9771a9a9f4ea1f5457373c73

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.