net/handshake: duplicate handshake cancellations leak socket

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CVE-2025-68775

CVE-2025-68775 concerns the Linux kernel, specifically the net/handshake cancellation path. The flaw arises when a handshake request is cancelled twice: the first cancellation removes the request from handshake_net->hn_requests but leaves it in handshake_rhashtbl; a second cancellation can cau...

PT-2026-2507

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's networking subsystem related to handshake cancellations. Specifically, duplicate cancellation requests for the same handshake request can lead to a...