{"cve":"CVE-2021-47425","nvd":{"published":"2024-05-21T15:15:27.930","modified":"2026-06-17T04:17:26.560","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: acpi: fix resource leak in reconfiguration device addition\n\nacpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a\nreference on the adapter which is never released which will result in a\nreference count leak and render the adapter unremovable.  Make sure to\nput the adapter after creating the client in the same manner that we do\nfor OF.\n\n[wsa: fixed title]","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:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/3d9d458a8aaafa47268ea4f1b4114a9f12927989","https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b","https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f","https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694","https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47425","score":0.00234,"percentile":0.14302,"date":"2026-10-31"},"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."]}