CVE-2026-89903 LoongArch: Do not save/restore percpu base register in rethook trampoline

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/loongarch/kernel/rethook_trampoline.S"
    ],
    "versions": [
      {
        "version": "3f5536860086d906b01ec5ed68cf50c7edcc40af",
        "lessThan": "a03b5e7483ad2c33ba5dd2adb8552e84bfee8fe2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3f5536860086d906b01ec5ed68cf50c7edcc40af",
        "lessThan": "8f15e95b438bc6b3c9f23a33c9a0d0678ebd1dc8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3f5536860086d906b01ec5ed68cf50c7edcc40af",
        "lessThan": "266ffc92e68593759adfe3d58f188773d32782c3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3f5536860086d906b01ec5ed68cf50c7edcc40af",
        "lessThan": "c048b0a3c0836c4b1bef4b51d355d27090bf6790",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3f5536860086d906b01ec5ed68cf50c7edcc40af",
        "lessThan": "c3f2feace5e4f4b01b68b9f947b19adb4155c32e",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/loongarch/kernel/rethook_trampoline.S"
    ],
    "versions": [
      {
        "version": "6.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.3",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.51",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.5",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]