CVE-2026-64002

Published: Jul 19, 2026Modified: Oct 19, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() ipv4_sysctl_exit_net() is currently freeing net->ipv4.sysctl_local_reserved_ports too soon. Only after unregister_net_sysctl_table() we can be sure no threads can possibly use the sysctls, including /proc/sys/net/ipv4/ip_local_reserved_ports.

Affected (12)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

12 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	3.16 ≤ version < 5.10.259
Linux Linux Kernel	5.11 ≤ version < 5.15.210
Linux Linux Kernel	5.16 ≤ version < 6.1.176
Linux Linux Kernel	6.13 ≤ version < 6.18.35
Linux Linux Kernel	6.19 ≤ version < 7.0.12
Linux Linux Kernel	6.2 ≤ version < 6.6.143
Linux Linux Kernel	6.7 ≤ version < 6.12.93
Linux Linux Kernel	Version 7.1 rc1
Linux Linux Kernel	Version 7.1 rc2
Linux Linux Kernel	Version 7.1 rc3
Linux Linux Kernel	Version 7.1 rc4
Linux Linux Kernel	Version 7.1 rc5