{
  "cvss": 0.0,
  "datePublished": "2026-07-25T10:17:31.660",
  "dateUpdated": "2026-11-03T18:15:39.353",
  "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: sideband: fix ring sg table pages leak\n\nxhci_ring_to_sgtable() allocates a temporary pages array and\nuses it to build the returned sg_table with\nsg_alloc_table_from_pages().\n\nThe error paths free the pages array, but the success path\nreturns the sg_table without freeing it. This leaks the temporary\narray every time a sideband client gets an endpoint or event ring\nbuffer.\n\nFree the pages array after sg_alloc_table_from_pages() succeeds.\nThe returned sg_table has its own scatterlist entries and does not\ndepend on the temporary array after construction.",
  "id": "CVE-2026-64464",
  "raw": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Linux",
            "programFiles": [
              "drivers/usb/host/xhci-sideband.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "lessThan": "99d00a9e35e311a91d258029d5bb584377296c34",
                "status": "affected",
                "version": "de66754e9f8029f8ae955a588959b99cab56b506",
                "versionType": "git"
              },
              {
                "lessThan": "a3eaf82ff842d6ca95937ea584417e04828235a6",
                "status": "affected",
                "version": "de66754e9f8029f8ae955a588959b99cab56b506",
                "versionType": "git"
              },
              {
                "lessThan": "49f6e3c3ef19f04f6657ed8dce550e36c763abb8",
                "status": "affected",
                "version": "de66754e9f8029f8ae955a588959b99cab56b506",
                "versionType": "git"
              }
            ]
          },
          {
            "defaultStatus": "affected",
            "product": "Linux",
            "programFiles": [
              "drivers/usb/host/xhci-sideband.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "status": "affected",
                "version": "6.16"
              },
              {
                "lessThan": "6.16",
                "status": "unaffected",
                "version": "0",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.18.*",
                "status": "unaffected",
                "version": "6.18.39",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "7.1.*",
                "status": "unaffected",
                "version": "7.1.4",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "7.2",
                "versionType": "original_commit_for_fix"
              }
            ]
          }
        ],
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: sideband: fix ring sg table pages leak\n\nxhci_ring_to_sgtable() allocates a temporary pages array and\nuses it to build the returned sg_table with\nsg_alloc_table_from_pages().\n\nThe error paths free the pages array, but the success path\nreturns the sg_table without freeing it. This leaks the temporary\narray every time a sideband client gets an endpoint or event ring\nbuffer.\n\nFree the pages array after sg_alloc_table_from_pages() succeeds.\nThe returned sg_table has its own scatterlist entries and does not\ndepend on the temporary array after construction."
      }
    ],
    "id": "CVE-2026-64464",
    "lastModified": "2026-11-03T18:15:39.353",
    "metrics": {},
    "published": "2026-07-25T10:17:31.660",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/49f6e3c3ef19f04f6657ed8dce550e36c763abb8"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/99d00a9e35e311a91d258029d5bb584377296c34"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/a3eaf82ff842d6ca95937ea584417e04828235a6"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Awaiting Analysis"
  },
  "severity": "UNKNOWN",
  "source": "nvd",
  "title": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: sideband: fix ring sg table pages leak\n\nxh..."
}