Out-of-bounds read in Linux kernel - CVE-2026-90223
Published: September 18, 2026
Vulnerability identifier: #VU151265
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90223
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform an out-of-bounds read.
The vulnerability exists due to an out-of-bounds read in nfc_llcp_recv_snl() when processing malformed SNL TLVs. A remote attacker can send a malformed SNL frame to perform an out-of-bounds read.
LLCP link activation occurs automatically after NFC-DEP.
Affected software
Linux kernel
How to mitigate CVE-2026-90223
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/02030f95820c42431280f4f945ff34247fb840ff
- https://git.kernel.org/stable/c/587fc2a5a35b41883b22b8f808fe5d345208914b
- https://git.kernel.org/stable/c/749a9048bf51a668ec3ab6c0392ba32325607281
- https://git.kernel.org/stable/c/88b36d36e12c9ba76decdb580d9c1907c084e587
- https://git.kernel.org/stable/c/99fdb5c2522f365efa199d0117b641e35097041e
- https://git.kernel.org/stable/c/eeb16fb24cfe67947b832fd9ada5f488afc72579
- https://git.kernel.org/stable/c/f04ac9bf2379f3e2470c400c235eb12f74891bef
- https://git.kernel.org/stable/c/f4c7f37f0ab990952539dc68d931d65c3657600a