{"id":"CVE-2026-64002","title":"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\n…","summary":"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\n…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.16, < 5.10.259","linux_kernel >= 5.11, < 5.15.210","linux_kernel >= 5.16, < 6.1.176","linux_kernel >= 6.2, < 6.6.143","linux_kernel >= 6.7, < 6.12.93","linux_kernel >= 6.13, < 6.18.35","linux_kernel >= 6.19, < 7.0.12","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.12"],"published":"2026-07-19","updated":"2026-10-08","sourceUpdated":"2026-10-08T17:57:56.040","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-64002","references":[{"url":"https://git.kernel.org/stable/c/155f90be5ee8be5b110ebc0b7da33c54c83b0208","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5b23a2ff379e70b6b9ff744a972b63e1f8f4d996","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6512c57c4638ddec113bf42439361ba85a12048d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/87a1e0fe7776da7ab411be332b4be58ac8840d10","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8e59d4d0dcde2dfb07a7ef855c849a2a0560aa57","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a0ffc6081a8b27082dd5eae5aa1e3f59bbecf06c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a7f4eefb6e1458431eef9fa20fb363320d185f76","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ecf45080a4d3f4526cacb8b14060fe3b49a6913b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00129,"epssPercentile":0.02192,"ingestedAt":"2026-10-08T18:58:11.293Z","slug":"CVE-2026-64002","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel >= 3.16, < 5.10.259`\n- `linux_kernel >= 5.11, < 5.15.210`\n- `linux_kernel >= 5.16, < 6.1.176`\n- `linux_kernel >= 6.2, < 6.6.143`\n- `linux_kernel >= 6.7, < 6.12.93`\n- `linux_kernel >= 6.13, < 6.18.35`\n- `linux_kernel >= 6.19, < 7.0.12`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.12`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}