CVE-2026-45884 apparmor: avoid per-cpu hold underflow in aa_get_buffer

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "security/apparmor/lsm.c"
    ],
    "versions": [
      {
        "version": "ea9bae12d02819556db63348db8bd8441eb316f2",
        "lessThan": "202824a1f89a9786c20a3d646a7c88d223abb1b2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea9bae12d02819556db63348db8bd8441eb316f2",
        "lessThan": "80c334acc6d0bee8605a358a33e69b4aea1ffb92",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea9bae12d02819556db63348db8bd8441eb316f2",
        "lessThan": "4bcddd0f6b2e52b4c7b520e4d36a115caf5b7169",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea9bae12d02819556db63348db8bd8441eb316f2",
        "lessThan": "640cf2f09575c9dc344b3f7be2498d31e3923ead",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "security/apparmor/lsm.c"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.14",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.4",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]