{"id":"CVE-2026-98447","title":"xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots","summary":"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 onl…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f0415af60f482a2192065be8b334b409495ca8a3 < d46492fb8018d12d00651b06b9d240e747110b38","Linux >= f0415af60f482a2192065be8b334b409495ca8a3 < 2703b954d306ebfe3b11e33e259759329c11b690","Linux >= f0415af60f482a2192065be8b334b409495ca8a3 < fe2f9135df43db849e74f03956d322ac20b59af7","Linux 6.14"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:14:57.561Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98447","references":[{"url":"https://git.kernel.org/stable/c/d46492fb8018d12d00651b06b9d240e747110b38"},{"url":"https://git.kernel.org/stable/c/2703b954d306ebfe3b11e33e259759329c11b690"},{"url":"https://git.kernel.org/stable/c/fe2f9135df43db849e74f03956d322ac20b59af7"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.306Z","slug":"CVE-2026-98447","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= f0415af60f482a2192065be8b334b409495ca8a3 < d46492fb8018d12d00651b06b9d240e747110b38`\n- `Linux >= f0415af60f482a2192065be8b334b409495ca8a3 < 2703b954d306ebfe3b11e33e259759329c11b690`\n- `Linux >= f0415af60f482a2192065be8b334b409495ca8a3 < fe2f9135df43db849e74f03956d322ac20b59af7`\n- `Linux 6.14`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}