{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4a2da0b8c0782816f3ae6846ae7942fcbb0f8172"
            },
            {
              "fixed": "1c5b4f76cd73372c5a8a4c91c95d5a31f141e091"
            },
            {
              "fixed": "06b62758f81e27ca4c81201c22e3436c6d9ac894"
            },
            {
              "fixed": "d809cf3f0ed9255abfc73c4730bcf187151422af"
            },
            {
              "fixed": "0b0122fcc923a0271130f5fb71af2cd7e20434d9"
            },
            {
              "fixed": "ce8dfd32a33b578c3abf178f67b4c8d36854f041"
            },
            {
              "fixed": "4599311e78e88c893ad551aca622de2bfdf1c31f"
            },
            {
              "fixed": "c75ee076fa09778a2f9602a972dade4a0b0785f7"
            },
            {
              "fixed": "03826bc1fa6c90405bf05831f2b501a8368dcd27"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.14.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "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/2026/90xxx/CVE-2026-90416.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs\n\nget_param() reads a congestion parameter as a u32 but formats it with the\nsigned \"%d\" into an 11-byte stack buffer. A value with bit 31 set, such as\n0x80000000, renders as \"-2147483648\\n\" whose full length is 12. snprintf()\nstores only 11 bytes yet returns 12, so simple_read_from_buffer() treats 12\nbytes as valid and reads one byte past lbuf[].\n\nSize the buffer for the widest unsigned decimal, format with \"%u\" to match\nthe u32, and use scnprintf() so the length passed to\nsimple_read_from_buffer() reflects the bytes actually stored.",
  "id": "CVE-2026-90416",
  "modified": "2026-09-19T03:30:23.093812188Z",
  "published": "2026-09-17T16:09:41.372Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03826bc1fa6c90405bf05831f2b501a8368dcd27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/06b62758f81e27ca4c81201c22e3436c6d9ac894"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b0122fcc923a0271130f5fb71af2cd7e20434d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c5b4f76cd73372c5a8a4c91c95d5a31f141e091"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4599311e78e88c893ad551aca622de2bfdf1c31f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c75ee076fa09778a2f9602a972dade4a0b0785f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ce8dfd32a33b578c3abf178f67b4c8d36854f041"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d809cf3f0ed9255abfc73c4730bcf187151422af"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90416.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90416"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "RDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs"
}