CVE-2025-39902 mm/slub: avoid accessing metadata when pointer is invalid in object_err()

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/slub.c"
    ],
    "versions": [
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "872f2c34ff232af1e65ad2df86d61163c8ffad42",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "f66012909e7bf383fcdc5850709ed5716073fdc4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "7e287256904ee796c9477e3ec92b07f236481ef3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "1f0797f17927b5cad0fb7eced422f9a7c30a3191",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "0ef7058b4dc6fcef622ac23b45225db57f17b83f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "dda6ec365ab04067adae40ef17015db447e90736",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "3baa1da473e6e50281324ff1d332d1a07a3bb02e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
        "lessThan": "b4efccec8d06ceb10a7d34d7b1c449c569d53770",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/slub.c"
    ],
    "versions": [
      {
        "version": "2.6.22",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.22",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.299",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.243",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.192",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.151",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.105",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.46",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.6",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]