{"cve":"CVE-2026-43074","nvd":{"published":"2026-05-06T10:16:20.343","modified":"2026-10-19T20:18:04.497","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\neventpoll: defer struct eventpoll free to RCU grace period\n\nIn certain situations, ep_free() in eventpoll.c will kfree the epi->ep\neventpoll struct while it still being used by another concurrent thread.\nDefer the kfree() to an RCU callback to prevent UAF.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-401","CWE-416"],"references":["https://git.kernel.org/stable/c/07712db80857d5d09ae08f3df85a708ecfc3b61f","https://git.kernel.org/stable/c/5b1173b165421561db29f30afc7e97d940a398a9","https://git.kernel.org/stable/c/7e8083f5eeedab0f460063b9c2c14c9a4e71a427","https://git.kernel.org/stable/c/902120be4f44947df6311002addc7faf69bdbff1","https://git.kernel.org/stable/c/a6566cd33f6f967a7651ebf2ce0dd31572e319cf"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-43074","score":0.00482,"percentile":0.41285,"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."]}