{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93214",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93214"
  ],
  "published": "2026-09-24T15:10:53Z",
  "summary": "usb: gadget: f_tcm: fix deadlock in usbg_make_tpg()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_tcm: fix deadlock in usbg_make_tpg()\n\nusbg_make_tpg() held dep_lock while calling\nconfigfs_depend_item_unlocked(), which acquires the configfs root\ninode lock when operating across subsystems. This creates a circular\nlock dependency with configfs_rmdir():\n\n  dep_lock -> configfs root inode lock -> su_mutex -> dep_lock\n\nIn usbg_make_tpg(), dep_lock only serialized the read of opts->ready,\nwhich is a monotonic flag that transitions from false to true exactly\nonce (in tcm_set_name()) and never reverts. Remove dep_lock from\nusbg_make_tpg() entirely and use READ_ONCE/WRITE_ONCE to access\nopts->ready locklessly instead.",
  "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": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93214"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/abad5daa41cf5d0a0a9cba0397d3a0e7f11e0277"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3639438a4c83ffc2e564c8c010b92137c5d11cfa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/78a14ea2284825055ab6c2a1f3489510f560f3a2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/eef3e62f90d86c1c5651742f84ecc9db1814a893"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f81a2da137b029a282b9bc64d2f267d242948659"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6bcd9ee6ad6989d1d85a7459687e45b7ad7568d9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d90b0f90e30cd59b36005a4016b15cf02bcd7fb2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9dbf74f4022f80f7669d2b3c22c5deb46c1b5674"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-24T15:10:53Z"
  }
}