{"cve":"CVE-2026-64182","nvd":{"published":"2026-07-19T16:18:00.600","modified":"2026-08-11T20:06:47.897","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/base/memory: fix memory block reference leak in poison accounting\n\nmemblk_nr_poison_inc() and memblk_nr_poison_sub() look up a memory block\nvia find_memory_block_by_id(), which acquires a reference to the memory\nblock device.\n\nBoth helpers use the returned memory block without dropping that\nreference, leaking the device reference on each successful lookup.  Drop\nthe reference after updating nr_hwpoison.","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":[],"references":["https://git.kernel.org/stable/c/03a2cc1756a0570f887d624cd6c535ea0cbd4951","https://git.kernel.org/stable/c/24840b3139d7415144b81e4f9f4c44670d15bed9","https://git.kernel.org/stable/c/686b4283f82cd630fafd7ca9b03dfc080b3ec8fa","https://git.kernel.org/stable/c/8502e2c2d0633f99d94d22ae8dabc10caae1fc2a","https://git.kernel.org/stable/c/ce60d9452a0f2effa72fd20ea270c59ca691d455"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:45:36.895656543+00:00"},"epss":{"cve":"CVE-2026-64182","score":0.00114,"percentile":0.01464,"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."]}