CVE-2026-90216ubi: Fix rollback for explicit UBI device numbers
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < 83c978921688af40dcab6db74882d1ff9b0b765c
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < 6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < 4417ab6ecad01cf2d01045ef8104c95a66b0e893
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < 552e565ed8846e7db143e4a6bdf3f5677453c686
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < 9754f049d5f1945d4c691d1f52824eb8daf8f9be
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < e3f7e58189bc222971ddc860f1716f37e51ba996
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < 87b3da4acb860605643ebee312178f13b20744cf
- affected 83ff59a066637a6c28844bbf43009459408240f4 – < 5b0a6b554e12a97f9771a9a9f4ea1f5457373c73
- affected 3.11
- unaffected < 3.11
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/83c978921688af40dcab6db74882d1ff9b0b765c (opens in a new tab)
- https://git.kernel.org/stable/c/6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5 (opens in a new tab)
- https://git.kernel.org/stable/c/4417ab6ecad01cf2d01045ef8104c95a66b0e893 (opens in a new tab)
- https://git.kernel.org/stable/c/552e565ed8846e7db143e4a6bdf3f5677453c686 (opens in a new tab)
- https://git.kernel.org/stable/c/9754f049d5f1945d4c691d1f52824eb8daf8f9be (opens in a new tab)
- https://git.kernel.org/stable/c/e3f7e58189bc222971ddc860f1716f37e51ba996 (opens in a new tab)
- https://git.kernel.org/stable/c/87b3da4acb860605643ebee312178f13b20744cf (opens in a new tab)
- https://git.kernel.org/stable/c/5b0a6b554e12a97f9771a9a9f4ea1f5457373c73 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-81809 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-90216)Record last updated .