{"id":"CVE-2026-98447","summary":"xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots\n\nLOLLM noticed that the inode btree root formatting methods copy too many\nbytes -- there's only one set of keys in node blocks, not two.  This\ncauses memory corruption of whatever's beyond the buffers.","modified":"2026-10-20T02:30:47.399700674Z","published":"2026-10-18T15:14:57.561Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98447.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/2703b954d306ebfe3b11e33e259759329c11b690"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d46492fb8018d12d00651b06b9d240e747110b38"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe2f9135df43db849e74f03956d322ac20b59af7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98447.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98447"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f0415af60f482a2192065be8b334b409495ca8a3"},{"fixed":"d46492fb8018d12d00651b06b9d240e747110b38"},{"fixed":"2703b954d306ebfe3b11e33e259759329c11b690"},{"fixed":"fe2f9135df43db849e74f03956d322ac20b59af7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98447.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.14.0"},{"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-2026-98447.json"}}],"schema_version":"1.9.0"}