CVE-2026-64002 | BDVDB-2026-349694 Detail
LinuxLinux
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-416 Use After Free
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
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.