{"cve":"CVE-2026-53309","nvd":{"published":"2026-06-26T20:17:24.203","modified":"2026-07-06T20:14:26.230","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison\n\nThe local-vs-remote region comparison loop uses '<=' instead of '<',\ncausing it to read one entry past the valid range of qr_regions.  The\nother loops in the same function correctly use '<'.\n\nFix the loop condition to use '<' for consistency and correctness.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-193"],"references":["https://git.kernel.org/stable/c/01b61e8dda9b0fdb0d4cda43de25f4e390554d7b","https://git.kernel.org/stable/c/1fb7f356547d9688822315cd2b205ff0bd5429b4","https://git.kernel.org/stable/c/2a0673836f019e7c032acbf48d022d5ccf02a845","https://git.kernel.org/stable/c/426cd8eedac89b86148d4478990eeef16e8a2520","https://git.kernel.org/stable/c/760ab35040aca8399021fdb9ff1db1089feb7194"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-53309","score":0.00399,"percentile":0.34154,"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."]}