net: skbuff: fix pull-bound underflow in skb_checksum_setup_ipv6()

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/core/skbuff.c"
                    ],
                    "versions": [
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "9c4e432132a97b82edf28fa172c39f743e6bfb26",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "718747afa5463d9cc5fd9a09f03b2a492edd9b78",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "a0ad0473c09d2e947aecac5c82e637ec85924b12",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "b2da5ed3d8c75e1b729a21b6d3beaed415e263f6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "6c28c31f051dbf49c71ba7ab7bb9bc905fa1d14b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "cfa643f2ca36c6f913fe1a2ceb12412ebb0fd962",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "d7f474226809471dc7877435e9c492cc914df0bf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1431fb31ecbaba1b5718006128f0f2ed0b94e1c3",
                            "lessThan": "3b4e0b0c008a8c1b474730248cd5b873026c74bd",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/core/skbuff.c"
                    ],
                    "versions": [
                        {
                            "version": "3.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.55",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.9",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }