{"id":"CVE-2026-72349","summary":"netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()\n\nOn links faster than ~34 Gbps, where byte rate may exceed 2^32-1\n(~ 4.3 GBps), the comparison result becomes incorrect because the\ntruncated value no longer reflects the actual estimator rate.\n\nFix by changing the local variables to u64.","modified":"2026-08-18T03:30:58.957136738Z","published":"2026-08-15T05:55:52.916Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72349.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/444853cd438201007da5359821adcc2995655ab1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5da915fc159c6b4091669447588e520183969cca"},{"type":"WEB","url":"https://git.kernel.org/stable/c/77e9ba358d63fe2eb03c90d29ea85651d95cf2e6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/905a927b2e6fec7b174e9e5644d271047b61378f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a3ba938f45cb00f6bf49d3aa3647df9b017f5f08"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bab305dd769d78074adca73505cc2509e1206bf2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d5cc4c12a4b90bf099199c3c49ecda7e694f2a2b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e702f6dd5d21e331f55fd9168c0210542008546d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72349.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72349"},{"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":"1c0d32fde5bdf1184bc274f864c09799278a1114"},{"fixed":"77e9ba358d63fe2eb03c90d29ea85651d95cf2e6"},{"fixed":"a3ba938f45cb00f6bf49d3aa3647df9b017f5f08"},{"fixed":"bab305dd769d78074adca73505cc2509e1206bf2"},{"fixed":"5da915fc159c6b4091669447588e520183969cca"},{"fixed":"d5cc4c12a4b90bf099199c3c49ecda7e694f2a2b"},{"fixed":"e702f6dd5d21e331f55fd9168c0210542008546d"},{"fixed":"905a927b2e6fec7b174e9e5644d271047b61378f"},{"fixed":"444853cd438201007da5359821adcc2995655ab1"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72349.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.10.0"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72349.json"}}],"schema_version":"1.9.0"}