{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-23075",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-23075"
  ],
  "published": "2026-02-04T16:18:56Z",
  "summary": "can: esd_usb: esd_usb_read_bulk_callback(): fix URB memory leak",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: esd_usb: esd_usb_read_bulk_callback(): fix URB memory leak\n\nFix similar memory leak as in commit 7352e1d5932a (\"can: gs_usb:\ngs_usb_receive_bulk_callback(): fix URB memory leak\").\n\nIn esd_usb_open(), the URBs for USB-in transfers are allocated, added to\nthe dev->rx_submitted anchor and submitted. In the complete callback\nesd_usb_read_bulk_callback(), the URBs are processed and resubmitted. In\nesd_usb_close() the URBs are freed by calling\nusb_kill_anchored_urbs(&dev->rx_submitted).\n\nHowever, this does not take into account that the USB framework unanchors\nthe URB before the complete function is called. This means that once an\nin-URB has been completed, it is no longer anchored and is ultimately not\nreleased in esd_usb_close().\n\nFix the memory leak by anchoring the URB in the\nesd_usb_read_bulk_callback() to the dev->rx_submitted anchor.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.162",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-23075"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/93b34d4ba7266030801a509c088ac77c0d7a12e9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dc934d96673992af8568664c1b58e13eb164010d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/92d26ce07ac3b7a850dc68c8d73d487b39c39b33"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/adec5e1f9c99fe079ec4c92cca3f1109a3e257c3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9d1807b442fc3286b204f8e59981b10e743533ce"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a9503ae43256e80db5cba9d449b238607164c51d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5a4391bdc6c8357242f62f22069c865b792406b3"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}