{"cve":"CVE-2026-98668","nvd":{"published":"2026-10-18T16:17:20.097","modified":"2026-10-21T13:21:35.993","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: Ensure bounce buffer used for unaligned case is zeroed.\n\niio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory\nto userspace if the data passed in is not a multiple of 8 bytes and the\ntimestamp is enabled. Specify __GFP_ZERO for the devm_krealloc()\nto ensure any extra space is cleared.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3a87212b1a09a1fdd730ce5520f7b1fc0b488511","https://git.kernel.org/stable/c/5330036bc68d23672bfcc16c60c54701ae123083","https://git.kernel.org/stable/c/b134ef820610bd873c9d59999d9824710964ce82","https://git.kernel.org/stable/c/b4f53cec8cc94b37601ce0bb2b272b6753beed98","https://git.kernel.org/stable/c/b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-98668","score":0.00168,"percentile":0.05989,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}