{"cve":"CVE-2026-93163","nvd":{"published":"2026-09-17T17:18:11.763","modified":"2026-10-21T13:21:01.163","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - fix rng list on registration error\n\nhwrng_register(rng) does the following:\n\n1. Checks if rng has name and read methods set\n2. Checks if the name already exists\n3. Adds rng to global rng_list\n4. May try to set rng to current_rng\n\nIf step 4 fails, it returns an error. However, it does not remove the\nrng from rng_list, causing a dangling reference which can result in\nuse-after-free if the caller frees rng, since registration failed.\n\nAdd a list_del_init() cleanup step.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3a5834db2b1ce25649f330e78efe1ccde78967fd","https://git.kernel.org/stable/c/bee8d1fcdc8f389b595b0a4cf6fe8440f499458a","https://git.kernel.org/stable/c/cf293c9c7424de0d04b51367d07f40570ce80231","https://git.kernel.org/stable/c/de4f1bcb61a73cc896decdbd27d61a34add93b53","https://git.kernel.org/stable/c/e37c67f768234e14cd6ea3b081568dd915c5b67e"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-93163","score":0.00206,"percentile":0.10561,"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."]}