Answer in brief
CVE-2026-89952 records a Unknown severity vulnerability in mtd: rawnand: validate ONFI extended parameter page sections. 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 | >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <1bf148fabe6463422195b7cc43b3412533f1dc21 || >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <c7df90bbda71549bfd981bf478ad04ddfccf4e0d || >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <86948f81964e40cd6472d76a6371e4f297d84db0 || >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <ddb6ddf5be7429bb98b3368c883be51f00b31678 || >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <12a63a0f0d17b2d26211b2524ded91a67dd5c99c || >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <c8f86e375b39cada09fd8cb33dd3bb3641e84a62 || >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <23e747fe585830c43095c37c85b2757231c6917f || >=6dcbe0cdd83fb5f77be4f44c9e06c535281c375a <e5e415262330bd70f983e091d8919d9dcd99e475 | 1bf148fabe6463422195b7cc43b3412533f1dc21, c7df90bbda71549bfd981bf478ad04ddfccf4e0d, 86948f81964e40cd6472d76a6371e4f297d84db0, ddb6ddf5be7429bb98b3368c883be51f00b31678, 12a63a0f0d17b2d26211b2524ded91a67dd5c99c, c8f86e375b39cada09fd8cb33dd3bb3641e84a62, 23e747fe585830c43095c37c85b2757231c6917f, e5e415262330bd70f983e091d8919d9dcd99e475 |
| Linux/Linuxgeneric | 3.12 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: validate ONFI extended parameter page sections nand_flash_detect_ext_param_page() allocates the length declared by the ONFI parameter page, then treats the data as a fixed header followed by variable-length sections. It reads that header and advances over sections without first proving that the fixed page and each current section fit in the allocation. Reject pages shorter than the fixed header, track the remaining variable area while walking sections, and require the ECC section to contain every field read from struct onfi_ext_ecc_info. Use device-scoped diagnostics that identify the malformed ONFI section.
Quoted source text, attributed separately from HOL analysis.