net: tun: bound receive headroom

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/tun.c"
                    ],
                    "versions": [
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "ad715e713610d2d5473c3a6498c825ccecf26491",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "708e87937de93f445225c134a2e20519f9b4ce60",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "18ef24cdb2eba32e38f1d27f2d02b7b4212e8f76",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "010eee265d6bd8769b6a523d2a0693d9b3f5df43",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "379d85c7f25f3e05a428225e6b8a65613c6e9b9d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "e098d9cc8859614a7f7baebc96e32a5a16b18ed2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "0ada54ea63e48b9c1608e917ccb7dfadbe86db28",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eaea34b23c46bf17b4a5638be69ab3561854f34b",
                            "lessThan": "447c9303942c439a117d9b76ce6d6e2116b38ee7",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/tun.c"
                    ],
                    "versions": [
                        {
                            "version": "4.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }