{"cve":{"cve_id":"CVE-2026-53309","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"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.","published_at":"2026-06-26T19:41:03.505000Z","last_modified_at":null,"cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/760ab35040aca8399021fdb9ff1db1089feb7194","https://git.kernel.org/stable/c/c60a2710b73838d250cda57344c049b89abc5d52","https://git.kernel.org/stable/c/2a0673836f019e7c032acbf48d022d5ccf02a845","https://git.kernel.org/stable/c/819d8ebad3200a53de99bd7e297bc428e41ced54","https://git.kernel.org/stable/c/d5403ae28085761d58b555645bc7d5feadb10073","https://git.kernel.org/stable/c/1fb7f356547d9688822315cd2b205ff0bd5429b4","https://git.kernel.org/stable/c/426cd8eedac89b86148d4478990eeef16e8a2520","https://git.kernel.org/stable/c/01b61e8dda9b0fdb0d4cda43de25f4e390554d7b"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-28T17:55:28.590503Z","updated_at":"2026-06-28T23:30:52.348775Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User 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published","source":null}]}