Missing length check in Linux kernel nfcmrvl NFC driver
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
The Linux kernel from 4.4 before the fixed releases listed in the solution is affected. The nfcmrvl NFC driver's firmware download receive path reads a helper command before checking that the remaining packet length is valid, so a short frame can reach the data access before it is rejected.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
Upgrade the Linux kernel to 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9 or 7.3. The fix validates the complete helper command length before stripping the NCI data header.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-18 Threatist record created from CVE-2026-98583
- 2026-10-18 Alias added: GHSA-fgwh-2g3x-83j6
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-20 Affected versions changed · Red Hat
- 2026-10-20 CVSS score added · Red Hat
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/842c0603cfa49530ef081f181a2ddbba77a37231
- https://git.kernel.org/stable/c/e4b012240c8aaf57cec192234c24e0db5f531ffa
- https://git.kernel.org/stable/c/f15ad9d6e9173a037587dded77c904fdae8df380
- https://git.kernel.org/stable/c/a4e56f57dd04d8f9bc6bc55f90f3d129da759ec9
- https://git.kernel.org/stable/c/4d4601e182c8567329be7d919669ec4d847ddd93
- https://git.kernel.org/stable/c/ed2e00bb22c73156bf8030b6204deabb25cf4eb5
- https://git.kernel.org/stable/c/6a17a5806e9fcd99cf0dd30c3e6301f2aa1fac3c
- https://git.kernel.org/stable/c/686f942332b1667f13f3b8d6a2f50bcfbf42e277
More Linux vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-98583 · CVE Program
- CVE-2026-98583 · NVD
- FIRST EPSS
- GHSA-fgwh-2g3x-83j6 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98583 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences