{"cve":{"cve_id":"CVE-2026-52908","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":0.00168,"epss_percentile":0.06336,"epss_as_of":"2026-06-23","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA: During rereg_mr ensure that REREG_ACCESS is compatible\n\nIf IB_MR_REREG_ACCESS changes from RO to RW then the umem has to be\nre-evaluated to ensure it is properly pinned as RW. Since the umem is\nhidden inside each driver's mr struct add a ib_umem_check_rereg() function\nthat each driver has to call before processing IB_MR_REREG_ACCESS.\n\nmlx4 has to retain its duplicate ib_access_writable check because it\nimplements IB_MR_REREG_ACCESS | IB_MR_REREG_TRANS by changing both items\nin place sequentially while the MR is live, so it will continue to not\nsupport this combination.","published_at":"2026-06-19T14:00:35.971000Z","last_modified_at":null,"cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","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/09dc18894148381d3bfc550083b1236043870dce","https://git.kernel.org/stable/c/eba5df21eda0fe7418efbea2f799f8ea1b8ca94c","https://git.kernel.org/stable/c/2904e985a2917b5dac65df82733065e78a65fc9d","https://git.kernel.org/stable/c/50334a05a950840b39a1ce3d2a173b4183db9b3e","https://git.kernel.org/stable/c/badad6fad60def1b9805559dd81dbab3d97b82aa"],"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":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:30:49.088205Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"b40656aa7d559adc1fe689396dc58b92a9a27286","version_start_inclusive":true,"version_end":"09dc18894148381d3bfc550083b1236043870dce","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:b40656aa7d559adc1fe689396dc58b92a9a27286:09dc18894148381d3bfc550083b1236043870dce"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"b40656aa7d559adc1fe689396dc58b92a9a27286","version_start_inclusive":true,"version_end":"eba5df21eda0fe7418efbea2f799f8ea1b8ca94c","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:b40656aa7d559adc1fe689396dc58b92a9a27286:eba5df21eda0fe7418efbea2f799f8ea1b8ca94c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"b40656aa7d559adc1fe689396dc58b92a9a27286","version_start_inclusive":true,"version_end":"2904e985a2917b5dac65df82733065e78a65fc9d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:b40656aa7d559adc1fe689396dc58b92a9a27286:2904e985a2917b5dac65df82733065e78a65fc9d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"b40656aa7d559adc1fe689396dc58b92a9a27286","version_start_inclusive":true,"version_end":"50334a05a950840b39a1ce3d2a173b4183db9b3e","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:b40656aa7d559adc1fe689396dc58b92a9a27286:50334a05a950840b39a1ce3d2a173b4183db9b3e"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"b40656aa7d559adc1fe689396dc58b92a9a27286","version_start_inclusive":true,"version_end":"badad6fad60def1b9805559dd81dbab3d97b82aa","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:b40656aa7d559adc1fe689396dc58b92a9a27286:badad6fad60def1b9805559dd81dbab3d97b82aa"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.2","version_start_inclusive":true,"version_end":"6.2","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.2:6.2"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.2","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.2"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.143","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.143:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.94","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.94:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.36","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.36:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.13","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.13:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/09dc18894148381d3bfc550083b1236043870dce","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/eba5df21eda0fe7418efbea2f799f8ea1b8ca94c","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/2904e985a2917b5dac65df82733065e78a65fc9d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/50334a05a950840b39a1ce3d2a173b4183db9b3e","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/badad6fad60def1b9805559dd81dbab3d97b82aa","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-19T14:00:35.971000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:55:22.518073Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:55:22.518073Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:55:22.518073Z","label":"CVSS score revised","source":"cvelistv5"}]}