CVE-2026-98583: nfc: nfcmrvl: validate helper command length before pull
In the Linux kernel, the following vulnerability has been resolved:
nfc: nfcmrvl: validate helper command length before pull
The firmware download receive path removes the NCI data header and reads the helper command before validating the remaining packet length. A short frame can therefore reach the data access before the malformed packet is rejected.
Validate the complete helper command length before stripping the NCI data header.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
In the Linux kernel nfc:nfcmrvl firmware download receive path, validate the complete helper command length before stripping the NCI data header.