CVE-2026-64045
kernel: ovpn: tcp - use cached peer pointer in ovpn_tcp_close()
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Severity
ModerateRed Hat Product Security
CVSS
Review impact separately from score.
Published · July 19, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's OpenVPN (ovpn) TCP module. A race condition in the ovpn_tcp_close() function allows it to access memory after it has been freed. This vulnerability arises when the function attempts to use a socket peer pointer after its associated socket object has been concurrently released. A local user can exploit this by triggering a peer removal while closing a TCP connection, which may lead to memory corruption and a denial of service.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-364 · Signal Handler Race Condition