{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0257be79fc4a16a3252ce80aa13b3640f728c425"
            },
            {
              "fixed": "231b8e1f604f6e0a7e100536f506cdf482e2c5f5"
            },
            {
              "fixed": "9a80c458320e0514e11945402dd6e48fcee05524"
            },
            {
              "fixed": "ca18c180b053f6ce80394322b314ac721c316af7"
            },
            {
              "fixed": "34bdcfb496b29f9a52431194f94473b37fb8c162"
            },
            {
              "fixed": "c0b654bc0b76a1da102d9138be1ed1223bd99310"
            },
            {
              "fixed": "e47029b977e747cb3a9174308fd55762cce70147"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.19.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.88"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.30"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46190.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()\n\nSashiko noticed an out-of-bounds read [1].\n\nIn spi_nor_params_show(), the snor_f_names array is passed to\nspi_nor_print_flags() using sizeof(snor_f_names).\n\nSince snor_f_names is an array of pointers, sizeof() returns the total\nnumber of bytes occupied by the pointers\n\t(element_count * sizeof(void *))\nrather than the element count itself. On 64-bit systems, this makes the\npassed length 8x larger than intended.\n\nInside spi_nor_print_flags(), the 'names_len' argument is used to\nbounds-check the 'names' array access. An out-of-bounds read occurs\nif a flag bit is set that exceeds the array's actual element count\nbut is within the inflated byte-size count.\n\nCorrect this by using ARRAY_SIZE() to pass the actual number of\nstring pointers in the array.",
  "id": "CVE-2026-46190",
  "modified": "2026-07-15T01:49:14.634819526Z",
  "published": "2026-05-28T09:36:44.017Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/231b8e1f604f6e0a7e100536f506cdf482e2c5f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34bdcfb496b29f9a52431194f94473b37fb8c162"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a80c458320e0514e11945402dd6e48fcee05524"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0b654bc0b76a1da102d9138be1ed1223bd99310"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca18c180b053f6ce80394322b314ac721c316af7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e47029b977e747cb3a9174308fd55762cce70147"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46190.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46190"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()"
}