{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2e4c7553cd6f9c68bb741582dcb614edcbeca70f"
            },
            {
              "fixed": "f3d31484b3f26d63c09e5569ebfaa1079a17f171"
            },
            {
              "fixed": "7411de0ce3b45286de1de82526795658ea6eacb0"
            },
            {
              "fixed": "5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.15.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90045.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: gadget: ffs: fix mm lifetime handling\n\nio_data stores a pointer to the submitting task's mm_struct,\nbut does not currently hold a reference to it while async\nrequests are pending.\n\nThis can result in a use-after-free if the task exits before\ncompletion handling finishes.\n\nTake a reference with mmgrab() when queuing the read request\nand release it with mmdrop() on request completion.",
  "id": "CVE-2026-90045",
  "modified": "2026-09-19T03:30:15.276736489Z",
  "published": "2026-09-16T10:33:42.411Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7411de0ce3b45286de1de82526795658ea6eacb0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f3d31484b3f26d63c09e5569ebfaa1079a17f171"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90045.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90045"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "USB: gadget: ffs: fix mm lifetime handling"
}