CVE-2026-89952mtd: rawnand: validate ONFI extended parameter page sections
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- 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
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a builds before 1bf148fabe6463422195b7cc43b3412533f1dc21; from 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a before c7df90bbda71549bfd981bf478ad04ddfccf4e0d; from 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a before 86948f81964e40cd6472d76a6371e4f297d84db0; from 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a before ddb6ddf5be7429bb98b3368c883be51f00b31678; from 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a before 12a63a0f0d17b2d26211b2524ded91a67dd5c99c; from 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a before c8f86e375b39cada09fd8cb33dd3bb3641e84a62; from 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a before 23e747fe585830c43095c37c85b2757231c6917f; from 6dcbe0cdd83fb5f77be4f44c9e06c535281c375a before e5e415262330bd70f983e091d8919d9dcd99e475 | CNA record |
References
- https://git.kernel.org/stable/c/1bf148fabe6463422195b7cc43b3412533f1dc21
- https://git.kernel.org/stable/c/c7df90bbda71549bfd981bf478ad04ddfccf4e0d
- https://git.kernel.org/stable/c/86948f81964e40cd6472d76a6371e4f297d84db0
- https://git.kernel.org/stable/c/ddb6ddf5be7429bb98b3368c883be51f00b31678
- https://git.kernel.org/stable/c/12a63a0f0d17b2d26211b2524ded91a67dd5c99c
- https://git.kernel.org/stable/c/c8f86e375b39cada09fd8cb33dd3bb3641e84a62
- https://git.kernel.org/stable/c/23e747fe585830c43095c37c85b2757231c6917f
- https://git.kernel.org/stable/c/e5e415262330bd70f983e091d8919d9dcd99e475
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.