vsock/virtio: validate packet source for connected sockets

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/af_vsock.h",
                        "net/vmw_vsock/af_vsock.c",
                        "net/vmw_vsock/virtio_transport_common.c"
                    ],
                    "versions": [
                        {
                            "version": "06a8fc78367d070720af960dcecec917d3ae5f3b",
                            "lessThan": "6cd829de69efd9ed3a53aa2421004a0396eb2bd7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06a8fc78367d070720af960dcecec917d3ae5f3b",
                            "lessThan": "e9bf92de436ba55f33eaa55d7008e68551123cfd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06a8fc78367d070720af960dcecec917d3ae5f3b",
                            "lessThan": "dee44f41f206becb41c492899c1996cfd7f82a1b",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/af_vsock.h",
                        "net/vmw_vsock/af_vsock.c",
                        "net/vmw_vsock/virtio_transport_common.c"
                    ],
                    "versions": [
                        {
                            "version": "4.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.59",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.13",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }