{"cve":"CVE-2026-89952","nvd":{"published":"2026-09-16T11:17:05.397","modified":"2026-10-19T09:18:41.233","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: validate ONFI extended parameter page sections\n\nnand_flash_detect_ext_param_page() allocates the length declared by the\nONFI parameter page, then treats the data as a fixed header followed by\nvariable-length sections. It reads that header and advances over sections\nwithout first proving that the fixed page and each current section fit in\nthe allocation.\n\nReject pages shorter than the fixed header, track the remaining variable\narea while walking sections, and require the ECC section to contain every\nfield read from struct onfi_ext_ecc_info. Use device-scoped diagnostics\nthat identify the malformed ONFI section.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/12a63a0f0d17b2d26211b2524ded91a67dd5c99c","https://git.kernel.org/stable/c/1bf148fabe6463422195b7cc43b3412533f1dc21","https://git.kernel.org/stable/c/23e747fe585830c43095c37c85b2757231c6917f","https://git.kernel.org/stable/c/86948f81964e40cd6472d76a6371e4f297d84db0","https://git.kernel.org/stable/c/c7df90bbda71549bfd981bf478ad04ddfccf4e0d"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:54:41.405518556+00:00"},"epss":{"cve":"CVE-2026-89952","score":0.00216,"percentile":0.11979,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}