{"id":"CVE-2026-98495","revision":"999237fca3b04f3e86066f5893a542ad","records":[{"revision":"999237fca3b04f3e86066f5893a542ad","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98495","aliases":[],"title":"net: arp: terminate device name before lookup","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: arp: terminate device name before lookup\n\nThe ARP ioctl copies a user-provided struct arpreq into a stack object. Its\narp_dev field may contain IFNAMSIZ bytes without a NUL terminator.\n\nSuch input is passed to dev_get_by_name_rcu() or __dev_get_by_name(), where\nstrcmp() can read past the end of the stack object when a matching\nalternative interface name exists.\n\nTerminate the field before the lookup to prevent the out-of-bounds read.","state":0,"publishedAt":"2026-10-18T15:16:24.81+00:00","modifiedAt":"2026-10-19T09:20:32.37+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ipv4/arp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"ae6d704dbf9542b0a0830ec91a2db4f30307e7d8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"47107491b48ceef0a2faa7a010cfa961f211ef9f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"7389757d88f54237951d7497d9c4dae7cc6d64be\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"414bbad9928598904313299ac9e037a73f520be1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"ba664d83638640cf454b65167339cbf20dfd6f10\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"35e716a70733472ede300540082d64c33bf3b4c9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc\",\n                            \"lessThan\": \"d8b6529e80bcb4fb8177121404cbb3377acaebd2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ipv4/arp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.5\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/ae6d704dbf9542b0a0830ec91a2db4f30307e7d8","https://git.kernel.org/stable/c/47107491b48ceef0a2faa7a010cfa961f211ef9f","https://git.kernel.org/stable/c/7389757d88f54237951d7497d9c4dae7cc6d64be","https://git.kernel.org/stable/c/1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b","https://git.kernel.org/stable/c/414bbad9928598904313299ac9e037a73f520be1","https://git.kernel.org/stable/c/ba664d83638640cf454b65167339cbf20dfd6f10","https://git.kernel.org/stable/c/35e716a70733472ede300540082d64c33bf3b4c9","https://git.kernel.org/stable/c/d8b6529e80bcb4fb8177121404cbb3377acaebd2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98495","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98495","identifiers":["CVE-2026-98495"]},"retained":false,"historicalAffected":[]}],"coverage":[]}