{"id":"CVE-2026-31674","summary":"netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check()\n\nReject rt match rules whose addrnr exceeds IP6T_RT_HOPS.\n\nrt_mt6() expects addrnr to stay within the bounds of rtinfo-\u003eaddrs[].\nValidate addrnr during rule installation so malformed rules are rejected\nbefore the match logic can use an out-of-range value.","modified":"2026-04-26T04:22:21.333841Z","published":"2026-04-25T08:46:50.180Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31674.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/29ea965a1353bc8303877422f79c8211e9ba9c55"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9d3f027327c2fa265f7f85ead41294792c3296ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a28ebf6f99de270d6338ccdc3b49f3e818f99b7b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/af9b7e2b765966457f4ec23be5bd34a141f89574"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c6a503a9f4debc654e3a6a7ca1f7fce6a9953c59"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d8795fde1f78669a87c87ac29fceab2f104daa8c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ded71f5684df16fa645cca5bf4fe6b0cd8a46119"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31674.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31674"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"},{"fixed":"13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa"},{"fixed":"af9b7e2b765966457f4ec23be5bd34a141f89574"},{"fixed":"29ea965a1353bc8303877422f79c8211e9ba9c55"},{"fixed":"c6a503a9f4debc654e3a6a7ca1f7fce6a9953c59"},{"fixed":"ded71f5684df16fa645cca5bf4fe6b0cd8a46119"},{"fixed":"d8795fde1f78669a87c87ac29fceab2f104daa8c"},{"fixed":"a28ebf6f99de270d6338ccdc3b49f3e818f99b7b"},{"fixed":"9d3f027327c2fa265f7f85ead41294792c3296ed"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31674.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.12"},{"fixed":"5.10.253"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.203"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.168"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.131"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.80"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.21"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31674.json"}}],"schema_version":"1.7.5"}