{"id":"CVE-2026-74570","summary":"ntfs: harden runlist realloc size calculations","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: harden runlist realloc size calculations\n\nAdd a shared helper to safely convert runlist element counts to byte sizes\nusing overflow checks, and use it in both ntfs_rl_realloc() and\nntfs_rl_realloc_nofail().","modified":"2026-08-18T03:56:51.689617545Z","published":"2026-08-15T12:28:10.107Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74570.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/57e7b8bf7b02a0140463fea786e5172cbdf2da2f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8bed376124ab4505b70083a2b91f2c7ef6d51e24"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74570.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74570"},{"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":"11ccc9107dc460de28af90fac1f42404d9802735"},{"fixed":"57e7b8bf7b02a0140463fea786e5172cbdf2da2f"},{"fixed":"8bed376124ab4505b70083a2b91f2c7ef6d51e24"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74570.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74570.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}