{"cve":"CVE-2026-90094","nvd":{"published":"2026-09-17T17:17:01.020","modified":"2026-10-19T09:18:58.707","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\narm64: process: Fix context switching MTE store-only tag check\n\nSCTLR_EL1.TCSO0 is set when user opt-in for MTE store-only tag check\nmode. However, it is not part of SCTLR_USER_MASK which imply that on\ncontext switch we never clear SCTLR_EL1.TCSO0, so we are leaking that\nsetting into another task.\n\nFix that by including SCTLR_EL1_TCSO0_MASK into SCTLR_USER_MASK","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/00a73ce437e27fdc636a5ede445a4a491e01788d","https://git.kernel.org/stable/c/2f10bc3ff24c91657887901c3235b803e5055f2b","https://git.kernel.org/stable/c/b8f070ac3167595069feb1f794c127b805115645"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-90094","score":0.00206,"percentile":0.10623,"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."]}