Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15.195, < 5.15.202 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/3b91160e9a91b5a2662875417dc42dc5b0bf03eaPatch
- https://git.kernel.org/stable/c/498fc5d0d650c77e87fcc73808d4f43240c21805Patch
- https://git.kernel.org/stable/c/571dcbeb8e635182bb825ae758399831805693c2Patch
- https://git.kernel.org/stable/c/a24a8a582da4426b2042e510a1080df84083b51dPatch
- https://git.kernel.org/stable/c/ad058a4317db7fdb3f09caa6ed536d24a62ce6a0Patch
- https://git.kernel.org/stable/c/c692db813a7e3b7c3c17d6e9a3ad2a018bf1142bPatch
- https://git.kernel.org/stable/c/f5218426f765eee22e178df9c126d974792fb6a5Patch
FAQ
What is CVE-2026-43291?
CVE-2026-43291 is a vulnerability with a CVSS score of 8.3 (HIGH). 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 pa...
How severe is CVE-2026-43291?
CVE-2026-43291 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43291?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.