Answer in brief
CVE-2026-90216 records a Unknown severity vulnerability in ubi: Fix rollback for explicit UBI device numbers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=83ff59a066637a6c28844bbf43009459408240f4 <83c978921688af40dcab6db74882d1ff9b0b765c || >=83ff59a066637a6c28844bbf43009459408240f4 <6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5 || >=83ff59a066637a6c28844bbf43009459408240f4 <4417ab6ecad01cf2d01045ef8104c95a66b0e893 || >=83ff59a066637a6c28844bbf43009459408240f4 <552e565ed8846e7db143e4a6bdf3f5677453c686 || >=83ff59a066637a6c28844bbf43009459408240f4 <9754f049d5f1945d4c691d1f52824eb8daf8f9be || >=83ff59a066637a6c28844bbf43009459408240f4 <e3f7e58189bc222971ddc860f1716f37e51ba996 || >=83ff59a066637a6c28844bbf43009459408240f4 <87b3da4acb860605643ebee312178f13b20744cf || >=83ff59a066637a6c28844bbf43009459408240f4 <5b0a6b554e12a97f9771a9a9f4ea1f5457373c73 | 83c978921688af40dcab6db74882d1ff9b0b765c, 6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5, 4417ab6ecad01cf2d01045ef8104c95a66b0e893, 552e565ed8846e7db143e4a6bdf3f5677453c686, 9754f049d5f1945d4c691d1f52824eb8daf8f9be, e3f7e58189bc222971ddc860f1716f37e51ba996, 87b3da4acb860605643ebee312178f13b20744cf, 5b0a6b554e12a97f9771a9a9f4ea1f5457373c73 |
| Linux/Linuxgeneric | 3.11 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.