Linux
CVE-2026-99123: In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: validate packet source for connected sockets virtio_transport_recv_pkt() loo
CVE-2026-99123 Oct 28, 2026 Source: Vendor
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: validate packet source for connected sockets
virtio_transport_recv_pkt() looks up sockets first by the full source and
destination tuple, then by destination only in the bound table. The
fallback is needed for listening and connecting sockets, but sockets remain
in the bound table after connect(), so it can also return a non-listening
socket.
The fallback does not validate the source address. In TCP_SYN_SENT, a
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-99123
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