{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "acd6199f195d6de814ac4090ce0864a613b1580e"
            },
            {
              "fixed": "0069593170a3d177de793c9a0b36989c4f069111"
            },
            {
              "fixed": "aed958c4f784a29cf42abb3e54af51a16bddde46"
            },
            {
              "fixed": "9c4bc8f7426aa001387800bf0140bfc5087a6de3"
            },
            {
              "fixed": "dd9483726d0f16c1a56879c3edb65128259a4e2b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93119.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ljca: bound bank_num in ljca_enumerate_gpio()\n\nljca_enumerate_gpio() reads desc-\u003ebank_num from the device and loops\nvalid_pin[i] = get_unaligned_le32(...) for i \u003c bank_num. valid_pin[]\nholds only LJCA_MAX_GPIO_NUM / 32 = 2 entries.\n\nTwo checks run before the loop. The reply length must match\nstruct_size(desc, bank_desc, bank_num). The product\npins_per_bank * bank_num must not exceed LJCA_MAX_GPIO_NUM. Neither one\nbounds bank_num against the size of valid_pin[]. The reply is capped at\nLJCA_MAX_PAYLOAD_SIZE (60) bytes, so the struct_size check limits\nbank_num to 9. A device that reports bank_num 9 with pins_per_bank 7\nstill passes both checks. gpio_num is 63 and the reply is 56 bytes. The\nloop then writes nine u32 into the two entry array and overruns\nvalid_pin[] on the stack.\n\nA broken or malicious LJCA device can therefore overflow the stack.\nReject a bank_num that does not fit valid_pin[].",
  "id": "CVE-2026-93119",
  "modified": "2026-09-19T03:30:15.936942504Z",
  "published": "2026-09-17T16:11:25.867Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0069593170a3d177de793c9a0b36989c4f069111"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c4bc8f7426aa001387800bf0140bfc5087a6de3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aed958c4f784a29cf42abb3e54af51a16bddde46"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd9483726d0f16c1a56879c3edb65128259a4e2b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93119.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93119"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "usb: ljca: bound bank_num in ljca_enumerate_gpio()"
}