CVE-2026-98849
kernel: pfcp: fix socket lifetime on netdevice registration failure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 23, 2026
Description
A flaw was found in the Linux kernel's Packet Forwarding Control Protocol (PFCP) driver. When creating a PFCP network interface, a failure during device registration triggers error handling that attempts to release an internal network socket twice. This improper cleanup results in a null pointer dereference, allowing a local user with network administration privileges to crash the system and cause 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-476 · NULL Pointer Dereference