{"cve":"CVE-2021-46934","nvd":{"published":"2024-02-27T10:15:07.877","modified":"2026-06-17T04:15:54.190","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: validate user data in compat ioctl\n\nWrong user data may cause warning in i2c_transfer(), ex: zero msgs.\nUserspace should not be able to trigger warnings, so this patch adds\nvalidation checks for user data in compact ioctl to prevent reported\nwarnings","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":3.3},"cwes":["CWE-754"],"references":["https://git.kernel.org/stable/c/407c8708fb1bf2d4afc5337ef50635cf540c364b","https://git.kernel.org/stable/c/8d31cbab4c295d7010ebb729e9d02d0e9cece18f","https://git.kernel.org/stable/c/9e4a3f47eff476097e0c7faac04d1831fc70237d","https://git.kernel.org/stable/c/bb436283e25aaf1533ce061605d23a9564447bdf","https://git.kernel.org/stable/c/f68599581067e8a5a8901ba9eb270b4519690e26"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:45:59.823092188+00:00"},"epss":{"cve":"CVE-2021-46934","score":0.00233,"percentile":0.14237,"date":"2026-11-01"},"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."]}