{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-31728",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31728",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-01T14:14:28.231Z",
    "updatedAt": "2026-05-11T22:14:36.858Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "usb: gadget: u_ether: Fix race between gether_disconnect and eth_stop",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: u_ether: Fix race between gether_disconnect and eth_stop\n\nA race condition between gether_disconnect() and eth_stop() leads to a\nNULL pointer dereference. Specifically, if eth_stop() is triggered\nconcurrently while gether_disconnect() is tearing down the endpoints,\neth_stop() attempts to access the cleared endpoint descriptor, causing\nthe following NPE:\n\n  Unable to handle kernel NULL pointer dereference\n  Call trace:\n   __dwc3_gadget_ep_enable+0x60/0x788\n   dwc3_gadget_ep_enable+0x70/0xe4\n   usb_ep_enable+0x60/0x15c\n   eth_stop+0xb8/0x108\n\nBecause eth_stop() crashes while holding the dev->lock, the thread\nrunning gether_disconnect() fails to acquire the same lock and spins\nforever, resulting in a hardlockup:\n\n  Core - Debugging Information for Hardlockup core(7)\n  Call trace:\n   queued_spin_lock_slowpath+0x94/0x488\n   _raw_spin_lock+0x64/0x6c\n   gether_disconnect+0x19c/0x1e8\n   ncm_set_alt+0x68/0x1a0\n   composite_setup+0x6a0/0xc50\n\nThe root cause is that the clearing of dev->port_usb in\ngether_disconnect() is delayed until the end of the function.\n\nMove the clearing of dev->port_usb to the very beginning of\ngether_disconnect() while holding dev->lock. This cuts off the link\nimmediately, ensuring eth_stop() will see dev->port_usb as NULL and\nsafely bail out.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f02980594deef751e42133714aee25228f1494c6"
            },
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e1e7a66584bf0aff3becb73c19fa31527889fc9e"
            },
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a259ba0bce3b192c04334499690372a250f7d0b1"
            },
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f6813c2b2ae78def76b69e0f9d72f80e4a1c4aca"
            },
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bbb09bb89ffa571475f66daca9482b974cd29d6a"
            },
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6ad77458637b78ec655e3da5f112c862e6690a9d"
            },
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8ff689edfeceb5e3ec1623e09af2b2aa0f1098a8"
            },
            {
              "version": "2b3d942c4878084a37991a65e66512c02b8fa2ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e1eabb072c75681f78312c484ccfffb7430f206e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.27",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.27"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.169",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.134",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.81",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.22",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}