Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: nfc: st21nfca: validate ISO15693 inventory length The ISO15693 inventory helper removes a two-byte prefix without checking that it exists, then accepts a one-byte remainder before reading data[1] as the DSFID. Require the prefix and at least two remaining bytes before copying the UID data and reading the DSFID.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund18 Oct 2026WID-SEC-2026-4019

  Linux Kernel: Multiple vulnerabilities Translated from German

  CVE-2026-98866CVE-2026-98624CVE-2026-98745+326 more CVEs

[ References ]References

• git.kernel.org/stable/c/3af2ea4035581a1607d9830779c187a0c7e225aa
• git.kernel.org/stable/c/57d183764f3002f9625ee4deeeb20716c519534e
• git.kernel.org/stable/c/6353dae51bc9b3cad13c9d890b53311a46c96b4e
• git.kernel.org/stable/c/7f2ea5ed588c03d481f0301e6c3d4240132383fb
• git.kernel.org/stable/c/9fa21b0f78adb514e3bd96a505ddb752e9727ff3
• git.kernel.org/stable/c/a86987d03a4d39acdbe4533d83db4d656ea36c59
• git.kernel.org/stable/c/e47b2a350bb0ff123434ec5484c6dc3333b0727c
• git.kernel.org/stable/c/fdd95e819d828c975aaeb258a3fed5dd7fd136d0