{"cve":"CVE-2023-53269","nvd":{"published":"2025-09-16T08:15:35.680","modified":"2026-06-17T06:44:41.600","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: ublk: make sure that block size is set correctly\n\nblock size is one very key setting for block layer, and bad block size\ncould panic kernel easily.\n\nMake sure that block size is set correctly.\n\nMeantime if ublk_validate_params() fails, clear ub->params so that disk\nis prevented from being added.","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/1d1665279a845d16c93687389e364386e3fe0f38","https://git.kernel.org/stable/c/231a49460ac0203270da2471928d392e5586370f","https://git.kernel.org/stable/c/9dbe85ac618ef6ae60abe5dd17ae2b29065d9c1e"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2023-53269","score":0.00157,"percentile":0.04848,"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."]}