CVE-2023-52825 drm/amdkfd: Fix a race condition of vram buffer unref in svm code

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/amd/amdkfd/kfd_svm.c"
    ],
    "versions": [
      {
        "version": "42de677f79999791bee4e21be318c32d90ab62c6",
        "lessThan": "7d43cdd22cd81a2b079e864c4321b9aba4c6af34",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "42de677f79999791bee4e21be318c32d90ab62c6",
        "lessThan": "50f35a907c4f9ed431fd3dbb8b871ef1cbb0718e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "42de677f79999791bee4e21be318c32d90ab62c6",
        "lessThan": "c772eacbd6d0845fc922af8716bb9d29ae27b8cf",
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      },
      {
        "version": "42de677f79999791bee4e21be318c32d90ab62c6",
        "lessThan": "fc0210720127cc6302e6d6f3de48f49c3fcf5659",
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        "versionType": "git"
      },
      {
        "version": "42de677f79999791bee4e21be318c32d90ab62c6",
        "lessThan": "709c348261618da7ed89d6c303e2ceb9e453ba74",
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      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/amd/amdkfd/kfd_svm.c"
    ],
    "versions": [
      {
        "version": "5.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.140",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.64",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5.13",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.3",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.7",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]