{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8de98402652c01839ae321be6cb3054cf5735d83"
            },
            {
              "fixed": "b0d00d077f9738d215af9b50c74dffab7a1de19f"
            },
            {
              "fixed": "be5004395dfd0b6ec310db359f887fa396fd0dd2"
            },
            {
              "fixed": "8890699eea19027ef6e4f9cbcf27cba5e789793f"
            },
            {
              "fixed": "6bc17a78a05671d303820224fb37ca339c1dc2cb"
            },
            {
              "fixed": "4bb88aee6b868cbf73bf453f62497802f5fe4769"
            },
            {
              "fixed": "b9399d25fbb34a05bbe76eeedd730f62ff2670e9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.15"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64348.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: free iso schedules on failed submit\n\nEHCI and FOTG210 isochronous submits build an ehci_iso_sched before\nlinking the URB to the endpoint queue, and keep the staged schedule in\nurb-\u003ehcpriv until iso_stream_schedule() and the link helpers consume it.\nIf the controller is no longer accessible, or usb_hcd_link_urb_to_ep()\nfails, submit jumps to done_not_linked before that handoff happens and\nleaks the staged schedule still attached to urb-\u003ehcpriv.\n\nFree the staged schedule from done_not_linked when submit fails before\nthe URB is linked and clear urb-\u003ehcpriv after the free.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1.1.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have an\nEHCI host controller with a USB isochronous device to test with, no\nruntime testing was able to be performed.",
  "id": "CVE-2026-64348",
  "modified": "2026-07-27T03:56:44.235307586Z",
  "published": "2026-07-25T08:50:08.983Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4bb88aee6b868cbf73bf453f62497802f5fe4769"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6bc17a78a05671d303820224fb37ca339c1dc2cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8890699eea19027ef6e4f9cbcf27cba5e789793f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0d00d077f9738d215af9b50c74dffab7a1de19f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9399d25fbb34a05bbe76eeedd730f62ff2670e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be5004395dfd0b6ec310db359f887fa396fd0dd2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64348.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64348"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "usb: free iso schedules on failed submit"
}