CVE-2026-98581
kernel: nfc: llcp: Fix list corruption / refcount desync in nfc_llcp_recv_dm()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's Near Field Communication (NFC) Logical Link Control Protocol (LLCP) implementation. When handling specific disconnection packets, the kernel fails to properly lock and unlink sockets before updating their state, leading to internal socket list corruption. A local user can exploit this flaw through concurrent socket operations to continuously leak kernel memory, ultimately causing system resource exhaustion and a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-413 · Improper Resource Locking