eventpoll: fix ep_remove struct eventpoll / struct file UAF

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/eventpoll.c"
                    ],
                    "versions": [
                        {
                            "version": "f2451def095c1743adcfcb0cb5dadc86034e162a",
                            "lessThan": "a10fbbe74e1c743beb1bb312109366667461df8a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a1f93804449d13f97dabd4b996817de4bf1ed67a",
                            "lessThan": "3e1144d2515d28e4312e663ea05eac203101491d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58c9b016e12855286370dfb704c08498edbc857a",
                            "lessThan": "2de4db145b2992da496fea6c51f9839be678ae24",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58c9b016e12855286370dfb704c08498edbc857a",
                            "lessThan": "9324de74a3a59b9fde9b62ee45ebaa71458ba2e5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58c9b016e12855286370dfb704c08498edbc857a",
                            "lessThan": "ef4ca02e95363e78977ca04340d44fe3b4b2b81f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58c9b016e12855286370dfb704c08498edbc857a",
                            "lessThan": "ced39b6a8062bac5c18a1c3df85634107eb8664a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58c9b016e12855286370dfb704c08498edbc857a",
                            "lessThan": "a6dc643c69311677c574a0f17a3f4d66a5f3744b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.15.209",
                            "lessThan": "5.15.222",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThan": "6.1.178",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/eventpoll.c"
                    ],
                    "versions": [
                        {
                            "version": "6.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.144",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.95",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.33",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.10",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }