{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-64360",
  "modified": "2026-10-07T14:35:31Z",
  "upstream": [
    "CVE-2026-64360"
  ],
  "published": "2026-07-25T08:51:45Z",
  "summary": "hfs/hfsplus: zero-initialize buffer in hfs_bnode_read",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs/hfsplus: zero-initialize buffer in hfs_bnode_read\n\nhfs_bnode_read() can return early without writing to the output buffer\nwhen is_bnode_offset_valid() fails or when check_and_correct_requested_\nlength() corrects the length to zero.  Callers such as hfs_bnode_read_\nu16() and hfs_bnode_read_u8() pass stack-allocated buffers and use the\nresult unconditionally, leading to KMSAN uninit-value reports.\n\nRather than initializing at each individual call site, zero the buffer\nat the start of hfs_bnode_read() before any validation checks.  This\nensures all callers in both hfs and hfsplus get a deterministic zero\nvalue regardless of which early-return path is taken.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-64360"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/34684a04777358b2b40ac729e54c8e45359e46b3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0b189b2204f1a2612dc68f8d139fb5b80539e710"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8f72fd25a57a457866350359ddd27a43caa62c95"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/16ca053c2be5f4f3044dccf7fc19237dc820d394"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d2afc7ecee476f9251dd87444f7fb6a424410922"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f3461b84a4865d9b5e70fbb71da72ae044a3bcd2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d5b45bad75cd2730b8452aed4d3b20a2b2a12576"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-17T05:24:08Z"
  }
}