{"cve":"CVE-2021-47671","nvd":{"published":"2025-04-17T18:15:43.933","modified":"2026-06-17T04:18:17.430","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path\n\nIn es58x_rx_err_msg(), if can->do_set_mode() fails, the function\ndirectly returns without calling netif_rx(skb). This means that the\nskb previously allocated by alloc_can_err_skb() is not freed. In other\nterms, this is a memory leak.\n\nThis patch simply removes the return statement in the error branch and\nlet the function continue.\n\nIssue was found with GCC -fanalyzer, please follow the link below for\ndetails.","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:L","score":3.3},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/4f389e1276a5389c92cef860c9fde8e1c802a871","https://git.kernel.org/stable/c/7eb0881aec26099089f12ae850aebd93190b1dfe","https://git.kernel.org/stable/c/d9447f768bc8c60623e4bb3ce65b8f4654d33a50"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:11.054312287+00:00"},"epss":{"cve":"CVE-2021-47671","score":0.00182,"percentile":0.07818,"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."]}