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mtd: rawnand: validate ONFI extended parameter page sections

Published Sep 16, 2026

Description

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.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (0)

No CWE recorded.

References (8)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Linux
Published Sep 16, 2026
Updated Sep 16, 2026
Reserved Sep 11, 2026
NVD
Status Received
Modified Sep 16, 2026
Red Hat
Severity n/a
Public date n/a
ENISA EUVD
Assigner n/a
Published n/a
Updated n/a
Exploited since n/a
Link n/a