Bug 2555011 (CVE-2026-98583) - CVE-2026-98583 kernel: nfc: nfcmrvl: validate helper command length before pull
Summary: CVE-2026-98583 kernel: nfc: nfcmrvl: validate helper command length before pull
Keywords:
Status: NEW
Alias: CVE-2026-98583
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-18 15:39 UTC by OSIDB Bzimport
Modified: 2026-10-20 03:52 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-10-18 15:39:06 UTC
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.


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