CVE-2026-52980 sched/fair: Clear rel_deadline when initializing forked entities

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/sched/core.c"
    ],
    "versions": [
      {
        "version": "82e9d0456e06cebe2c89f3c73cdbc9e3805e9437",
        "lessThan": "c71bf35caba12bfd9bc23e32b0bcd9e02d1cf1ac",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82e9d0456e06cebe2c89f3c73cdbc9e3805e9437",
        "lessThan": "f3c16e1f4a314a20717ab90a41885f8111a242ab",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82e9d0456e06cebe2c89f3c73cdbc9e3805e9437",
        "lessThan": "8f4a16200785f49cf02c5b71bdfe7a9dab63f23a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82e9d0456e06cebe2c89f3c73cdbc9e3805e9437",
        "lessThan": "3da56dc063cd77b9c0b40add930767fab4e389f3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/sched/core.c"
    ],
    "versions": [
      {
        "version": "6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "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"
      }
    ]
  }
]