nfc: digital: clamp SENSF_RES length to the destination buffer
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: nfc: digital: clamp SENSF_RES length to the destination buffer digital_in_recv_sensf_res() memcpy()s resp->len bytes from a remote NFC-F device response into the NFC_SENSF_RES_MAXSIZE-byte target.sensf_res field without an upper-bound check. A nearby malicious NFC-F device can send an oversized SENSF_RES response to overflow the stack-local struct nfc_target. Clamp resp->len to NFC_SENSF_RES_MAXSIZE before the copy. Found by 0sec automated security-research tooling (https://0sec.ai).
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.13 and later | 5.10.267, 5.15.218, 6.1.185, 6.6.154, 6.12.106, 6.18.47, 7.1.11, 7.2.1, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 3.13 and later Fixed in 5.10.267, 5.15.218, 6.1.185, 6.6.154, 6.12.106, 6.18.47, 7.1.11, 7.2.1, 7.3 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.267, 5.15.218, 6.1.185, 6.6.154, 6.12.106, 6.18.47, 7.1.11, 7.2.1, 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
- 2026-10-02 Threatist record created from CVE-2026-80803
- 2026-10-03 Alias added: GHSA-p57f-2f7j-w542
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CVSS score added · Red Hat
References
Other 9
- https://git.kernel.org/stable/c/6afb29751ee731e7f7a96feb8a15f91441e552ba
- https://git.kernel.org/stable/c/e886c63d2ca7108826076989103a1ffa8a0bb8f4
- https://git.kernel.org/stable/c/4e942da2869bcd646353eef706b7dd82efeb9db5
- https://git.kernel.org/stable/c/d0756a98277e383c26fead988a96c91f0781cd7f
- https://git.kernel.org/stable/c/af4c0606f743e009254a8d252096855335ade85d
- https://git.kernel.org/stable/c/a56773e649ea99b344d6bbaf90f34c8e3fadef5d
- https://git.kernel.org/stable/c/a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6
- https://git.kernel.org/stable/c/31aa28ed732f66ab83c40ef53d99791be69b85c4
- https://git.kernel.org/stable/c/344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16
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Sources
- CVE-2026-80803 · CVE Program
- CVE-2026-80803 · NVD
- FIRST EPSS
- GHSA-p57f-2f7j-w542 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-80803 · Red Hat security data · CC BY 4.0
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