{"cve":"CVE-2026-98843","nvd":{"published":"2026-10-18T16:17:38.623","modified":"2026-10-19T10:19:48.390","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: zero gaps in read-gaps folio to avoid writing back stale data\n\nnetfs_read_gaps() leaves gaps around a streaming write's dirty region\nunread on the server side, so a short/EOF response there left stale\nfolio content that later got written back.\n\nZero it after the read completes, not before: netfs_wait_for_read()\nreturns rreq->transferred once ret >= 0, so build an iterator over the\nsame bvec array the read used, advance past ret, and zero the rest.\nThe dirty region already maps to sink pages in that array rather than\nthe real folio, so this can't touch it, and only the actual shortfall\ngets zeroed instead of the whole gap upfront.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/2a62fe628a877c249c8286b157ee99d82840d9dc","https://git.kernel.org/stable/c/512eaf01ffabf4258e945016b50df5aed940b705","https://git.kernel.org/stable/c/8db55c5cd831a786a1a2a2d391aa80354535a353"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98843","score":0.00166,"percentile":0.05772,"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."]}