{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "a3e64e950a3981a8199de9798f6d21261b959171"
            },
            {
              "fixed": "229dc9b9db475ac900182bafe258943e0e054c6d"
            },
            {
              "fixed": "26b3ec62fa1a94ac801feca47f040fc729b3c174"
            },
            {
              "fixed": "35854ed5c40b02f95824e44398f9d2ba33727203"
            },
            {
              "fixed": "67ba6b13dbcaf45681fb6758794c5ac5fa589a6c"
            },
            {
              "fixed": "d2e7c898cc02dfe42443489a67a45ed616cb76e9"
            },
            {
              "fixed": "2705709f6574a088aab246af72fc95f2fea51484"
            },
            {
              "fixed": "3d7e6ce34f4fcc7083510c28b17a7c36462a25d4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "5.10.252"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.202"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.165"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.128"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.75"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.16"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43156.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: pegasus: enable basic endpoint checking\n\npegasus_probe() fills URBs with hardcoded endpoint pipes without\nverifying the endpoint descriptors:\n\n  - usb_rcvbulkpipe(dev, 1) for RX data\n  - usb_sndbulkpipe(dev, 2) for TX data\n  - usb_rcvintpipe(dev, 3)  for status interrupts\n\nA malformed USB device can present these endpoints with transfer types\nthat differ from what the driver assumes.\n\nAdd a pegasus_usb_ep enum for endpoint numbers, replacing magic\nconstants throughout. Add usb_check_bulk_endpoints() and\nusb_check_int_endpoints() calls before any resource allocation to\nverify endpoint types before use, rejecting devices with mismatched\ndescriptors at probe time, and avoid triggering assertion.\n\nSimilar fix to\n- commit 90b7f2961798 (\"net: usb: rtl8150: enable basic endpoint checking\")\n- commit 9e7021d2aeae (\"net: usb: catc: enable basic endpoint checking\")",
  "id": "CVE-2026-43156",
  "modified": "2026-07-08T05:37:42.419662942Z",
  "published": "2026-05-06T11:27:36.491Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/229dc9b9db475ac900182bafe258943e0e054c6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26b3ec62fa1a94ac801feca47f040fc729b3c174"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2705709f6574a088aab246af72fc95f2fea51484"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35854ed5c40b02f95824e44398f9d2ba33727203"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d7e6ce34f4fcc7083510c28b17a7c36462a25d4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67ba6b13dbcaf45681fb6758794c5ac5fa589a6c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3e64e950a3981a8199de9798f6d21261b959171"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2e7c898cc02dfe42443489a67a45ed616cb76e9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43156.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43156"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "net: usb: pegasus: enable basic endpoint checking"
}