FKIE_CVE-2025-68734

Vulnerability from fkie_nvd - Published: 2025-12-24 11:16 - Updated: 2026-10-13 11:10
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: hfcsusb: fix memory leak in hfcsusb_probe() In hfcsusb_probe(), the memory allocated for ctrl_urb gets leaked when setup_instance() fails with an error code. Fix that by freeing the urb before freeing the hw structure. Also change the error paths to use the goto ladder style. Compile tested only. Issue found using a prototype static analysis tool.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03695541b3349bc40bf5d6563d44d6147fb20260
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f7c72bc73c4e542fde14cce017549d8a0b61a3c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f978e3f1570155a1327ffa25f60968bc7b9398f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/475032fa2bb82ffb592c321885e917e39f47357f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6dce43433e0635e7b00346bc937b69ce48ea71bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/adb7577e23a431fc53aa1b6107733c0d751015fb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b70c24827e11fdc71465f9207e974526fb457bb9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ea7936304ed74ab7f965d17f942a173ce91a5ca8
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/isdn/hardware/mISDN/hfcsusb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "475032fa2bb82ffb592c321885e917e39f47357f",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            },
            {
              "lessThan": "adb7577e23a431fc53aa1b6107733c0d751015fb",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            },
            {
              "lessThan": "b70c24827e11fdc71465f9207e974526fb457bb9",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            },
            {
              "lessThan": "3f7c72bc73c4e542fde14cce017549d8a0b61a3c",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            },
            {
              "lessThan": "03695541b3349bc40bf5d6563d44d6147fb20260",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            },
            {
              "lessThan": "6dce43433e0635e7b00346bc937b69ce48ea71bb",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            },
            {
              "lessThan": "ea7936304ed74ab7f965d17f942a173ce91a5ca8",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            },
            {
              "lessThan": "3f978e3f1570155a1327ffa25f60968bc7b9398f",
              "status": "affected",
              "version": "69f52adb2d534afc41fcc658f155e01f0b322f9e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/isdn/hardware/mISDN/hfcsusb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.29"
            },
            {
              "lessThan": "2.6.29",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "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\nisdn: mISDN: hfcsusb: fix memory leak in hfcsusb_probe()\n\nIn hfcsusb_probe(), the memory allocated for ctrl_urb gets leaked when\nsetup_instance() fails with an error code. Fix that by freeing the urb\nbefore freeing the hw structure. Also change the error paths to use the\ngoto ladder style.\n\nCompile tested only. Issue found using a prototype static analysis tool."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:\n\nisdn: mISDN: hfcsusb: corregir fuga de memoria en hfcsusb_probe()\n\nEn hfcsusb_probe(), la memoria asignada para ctrl_urb se fuga cuando setup_instance() falla con un c\u00f3digo de error. Corregir eso liberando el urb antes de liberar la estructura hw. Tambi\u00e9n cambiar las rutas de error para usar el estilo de escalera goto.\n\nProbado solo en compilaci\u00f3n. Problema encontrado usando una herramienta de an\u00e1lisis est\u00e1tico prototipo."
    }
  ],
  "id": "CVE-2025-68734",
  "lastModified": "2026-10-13T11:10:00.203",
  "metrics": {},
  "published": "2025-12-24T11:16:02.700",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/03695541b3349bc40bf5d6563d44d6147fb20260"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3f7c72bc73c4e542fde14cce017549d8a0b61a3c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3f978e3f1570155a1327ffa25f60968bc7b9398f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/475032fa2bb82ffb592c321885e917e39f47357f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6dce43433e0635e7b00346bc937b69ce48ea71bb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/adb7577e23a431fc53aa1b6107733c0d751015fb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b70c24827e11fdc71465f9207e974526fb457bb9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ea7936304ed74ab7f965d17f942a173ce91a5ca8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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