{"id":"CVE-2026-64002","revision":"c174b4eed60a468db42163203d3497d7","records":[{"revision":"c174b4eed60a468db42163203d3497d7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64002","aliases":[],"title":"ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()\n\nipv4_sysctl_exit_net() is currently freeing net->ipv4.sysctl_local_reserved_ports\ntoo soon.\n\nOnly after unregister_net_sysctl_table() we can be sure no threads can possibly\nuse the sysctls, including /proc/sys/net/ipv4/ip_local_reserved_ports.","state":0,"publishedAt":"2026-07-19T14:56:19.495+00:00","modifiedAt":"2026-10-19T20:18:02.288+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ipv4/sysctl_net_ipv4.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"ecf45080a4d3f4526cacb8b14060fe3b49a6913b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"5b23a2ff379e70b6b9ff744a972b63e1f8f4d996\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"6512c57c4638ddec113bf42439361ba85a12048d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"a7f4eefb6e1458431eef9fa20fb363320d185f76\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"155f90be5ee8be5b110ebc0b7da33c54c83b0208\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"122ff243f5f104194750ecbc76d5946dd1eec934\",\n                            \"lessThan\": \"87a1e0fe7776da7ab411be332b4be58ac8840d10\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ipv4/sysctl_net_ipv4.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.16\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.259\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.210\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.176\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.143\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.93\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.35\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.12\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/ecf45080a4d3f4526cacb8b14060fe3b49a6913b","https://git.kernel.org/stable/c/a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c","https://git.kernel.org/stable/c/5b23a2ff379e70b6b9ff744a972b63e1f8f4d996","https://git.kernel.org/stable/c/8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57","https://git.kernel.org/stable/c/6512c57c4638ddec113bf42439361ba85a12048d","https://git.kernel.org/stable/c/a7f4eefb6e1458431eef9fa20fb363320d185f76","https://git.kernel.org/stable/c/155f90be5ee8be5b110ebc0b7da33c54c83b0208","https://git.kernel.org/stable/c/87a1e0fe7776da7ab411be332b4be58ac8840d10"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64002","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64002","identifiers":["CVE-2026-64002"]},"retained":false,"historicalAffected":[]}],"coverage":[]}