gpu/buddy: bail out of try_harder when alignment cannot be honoured

{
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  "url": "https://osv.dev/vulnerability/CVE-2026-72244",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "gpu/buddy: bail out of try_harder when alignment cannot be honoured",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: gpu/buddy: bail out of try_harder when alignment cannot be honoured The try_harder contiguous fallback could return a range whose start offset did not match the caller's min_block_size. When a candidate's start is misaligned, realign it: free the misaligned run and reallocate exactly @size at the next lower min_block_size boundary. This keeps the returned size unchanged with no surplus to trim, and rejects the request only when no aligned candidate fits. v2: align misaligned candidates down to min_block_size instead of bailing out, for both the RHS and LHS paths (Matthew).",
    "evidence": "osv:CVE-2026-72244",
    "products": [
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        "name": {
          "value": "Kernel",
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        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.101",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.42",
            "evidence": "/affected/1/ranges"
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          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
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    "severity": "high",
    "structured": {
      "id": "CVE-2026-72244",
      "aliases": [
        "CVE-2026-72244"
      ],
      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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                  "introduced": "6.13.0"
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                  "fixed": "6.18.42"
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      "modified": "2026-10-28T02:30:35.565998637Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/419d7d9306491f3e0e417cf794844c73cabee090",
        "https://git.kernel.org/stable/c/4289531106ee175a6eb45db7d4f2734d1dae9887",
        "https://git.kernel.org/stable/c/56bc6384314fb9ae98975fb2af8b143097ede3dc",
        "https://git.kernel.org/stable/c/7185c5262435b93e5eeffa647008992256b9c51a",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72244.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72244",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 503006,
  "published_at": "2026-08-15T05:54:31.866+00:00"
}