skbuff: Fix a race between coalescing and releasing SKBs

{
                    "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": "53e0961da1c7bbdabd1abebb20de403ec237ec09",
                            "lessThan": "906a6689bb0191ad2a44131a3377006aa098af59",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "53e0961da1c7bbdabd1abebb20de403ec237ec09",
                            "lessThan": "71850b5af92da21b4862a9bc55bda61091247d00",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "53e0961da1c7bbdabd1abebb20de403ec237ec09",
                            "lessThan": "5f692c992a3bb9a8018e3488098b401a4229e7ec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "53e0961da1c7bbdabd1abebb20de403ec237ec09",
                            "lessThan": "0646dc31ca886693274df5749cd0c8c1eaaeb5ca",
                            "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": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.108",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.25",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.12",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }