{"id":"CVE-2026-46190","summary":"mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()","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.","modified":"2026-07-15T01:49:14.634819526Z","published":"2026-05-28T09:36:44.017Z","related":["openSUSE-SU-2026:10954-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46190.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0257be79fc4a16a3252ce80aa13b3640f728c425"},{"fixed":"231b8e1f604f6e0a7e100536f506cdf482e2c5f5"},{"fixed":"9a80c458320e0514e11945402dd6e48fcee05524"},{"fixed":"ca18c180b053f6ce80394322b314ac721c316af7"},{"fixed":"34bdcfb496b29f9a52431194f94473b37fb8c162"},{"fixed":"c0b654bc0b76a1da102d9138be1ed1223bd99310"},{"fixed":"e47029b977e747cb3a9174308fd55762cce70147"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46190.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","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"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46190.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}]}