CVE-2026-43291

In the Linux kernel, the following vulnerability has been resolved: net: nfc: nci: Fix parameter validation for packet data Since commit 9c328f54741b ("net: nfc: nci: Add parameter validation for packet data") communication with nci nfc chips is not working any more. The mentioned commit tries to fix access of uninitialized data, but failed to understand that in some cases the data packet is of variable length and can therefore not be compared to the maximum packet length given by the sizeof(struct).

CVSS v3 8.3 HIGH

8.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.5

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3b91160e9a91b5a2662875417dc42dc5b0bf03ea	Patch
https://git.kernel.org/stable/c/498fc5d0d650c77e87fcc73808d4f43240c21805	Patch
https://git.kernel.org/stable/c/571dcbeb8e635182bb825ae758399831805693c2	Patch
https://git.kernel.org/stable/c/a24a8a582da4426b2042e510a1080df84083b51d	Patch
https://git.kernel.org/stable/c/ad058a4317db7fdb3f09caa6ed536d24a62ce6a0	Patch
https://git.kernel.org/stable/c/c692db813a7e3b7c3c17d6e9a3ad2a018bf1142b	Patch
https://git.kernel.org/stable/c/f5218426f765eee22e178df9c126d974792fb6a5	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-08 14:16

Updated : 2026-06-17 10:49

NVD link : CVE-2026-43291

Mitre link : CVE-2026-43291

CVE.ORG link : CVE-2026-43291

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-908

Use of Uninitialized Resource

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