{"id":"CVE-2026-98495","summary":"net: arp: terminate device name before lookup","details":"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.","modified":"2026-10-19T02:46:26.440618705Z","published":"2026-10-18T15:16:24.810Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98495.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/1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/35e716a70733472ede300540082d64c33bf3b4c9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/414bbad9928598904313299ac9e037a73f520be1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/47107491b48ceef0a2faa7a010cfa961f211ef9f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7389757d88f54237951d7497d9c4dae7cc6d64be"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ae6d704dbf9542b0a0830ec91a2db4f30307e7d8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba664d83638640cf454b65167339cbf20dfd6f10"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d8b6529e80bcb4fb8177121404cbb3377acaebd2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98495.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98495"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc"},{"fixed":"ae6d704dbf9542b0a0830ec91a2db4f30307e7d8"},{"fixed":"47107491b48ceef0a2faa7a010cfa961f211ef9f"},{"fixed":"7389757d88f54237951d7497d9c4dae7cc6d64be"},{"fixed":"1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b"},{"fixed":"414bbad9928598904313299ac9e037a73f520be1"},{"fixed":"ba664d83638640cf454b65167339cbf20dfd6f10"},{"fixed":"35e716a70733472ede300540082d64c33bf3b4c9"},{"fixed":"d8b6529e80bcb4fb8177121404cbb3377acaebd2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98495.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.271"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.222"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.55"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98495.json"}}],"schema_version":"1.9.0"}