{"cve":{"cve_id":"CVE-2026-46323","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":0.0012,"epss_percentile":0.02155,"epss_as_of":"2026-06-23","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: gro: don't merge zcopy skbs\n\nskb_gro_receive() can currently copy frags between the source and GRO\nskb, without checking the zerocopy status, and in particular the\nSKBFL_MANAGED_FRAG_REFS flag.\n\nWhen SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference\non the pages in shinfo->frags. Appending those frags to another skb's\nfrags without fixing up the page refcount can lead to UAF.\n\nWhen either the last skb in the GRO chain (the one we would append\nfrags to) or the source skb is zerocopy, don't merge the skbs.","published_at":"2026-06-09T12:11:15.562000Z","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/3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d","https://git.kernel.org/stable/c/1f9c828556416fbe3f49386708ce999fc4d4da06","https://git.kernel.org/stable/c/479084ae0e1d9cb7929cb4298d35623de189f80a","https://git.kernel.org/stable/c/e334cbf3388fd9334503a778a82d9e9f14dd2f71","https://git.kernel.org/stable/c/44bea2032af0425e4ce6d26a8af0ede79db49ec1","https://git.kernel.org/stable/c/4db79a322db8c97f7b73b8a347395ef4d685eb40"],"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":"2026-06-28T23:30:37.146260Z"},"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":"753f1ca4e1e50248a1b760c9774d6d6b354562cc","version_start_inclusive":true,"version_end":"3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:753f1ca4e1e50248a1b760c9774d6d6b354562cc:3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"753f1ca4e1e50248a1b760c9774d6d6b354562cc","version_start_inclusive":true,"version_end":"1f9c828556416fbe3f49386708ce999fc4d4da06","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:753f1ca4e1e50248a1b760c9774d6d6b354562cc:1f9c828556416fbe3f49386708ce999fc4d4da06"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"753f1ca4e1e50248a1b760c9774d6d6b354562cc","version_start_inclusive":true,"version_end":"479084ae0e1d9cb7929cb4298d35623de189f80a","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:753f1ca4e1e50248a1b760c9774d6d6b354562cc:479084ae0e1d9cb7929cb4298d35623de189f80a"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"753f1ca4e1e50248a1b760c9774d6d6b354562cc","version_start_inclusive":true,"version_end":"e334cbf3388fd9334503a778a82d9e9f14dd2f71","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:753f1ca4e1e50248a1b760c9774d6d6b354562cc:e334cbf3388fd9334503a778a82d9e9f14dd2f71"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"753f1ca4e1e50248a1b760c9774d6d6b354562cc","version_start_inclusive":true,"version_end":"44bea2032af0425e4ce6d26a8af0ede79db49ec1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:753f1ca4e1e50248a1b760c9774d6d6b354562cc:44bea2032af0425e4ce6d26a8af0ede79db49ec1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"753f1ca4e1e50248a1b760c9774d6d6b354562cc","version_start_inclusive":true,"version_end":"4db79a322db8c97f7b73b8a347395ef4d685eb40","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:753f1ca4e1e50248a1b760c9774d6d6b354562cc:4db79a322db8c97f7b73b8a347395ef4d685eb40"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.0:6.0"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.0"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.176","version_start_inclusive":true,"version_end":"6.1.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.1.176:6.1.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.142","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.142:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.92","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.92:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.34","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.34:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.11","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.11:7.0.*"},{"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/3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1f9c828556416fbe3f49386708ce999fc4d4da06","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/479084ae0e1d9cb7929cb4298d35623de189f80a","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/e334cbf3388fd9334503a778a82d9e9f14dd2f71","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/44bea2032af0425e4ce6d26a8af0ede79db49ec1","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/4db79a322db8c97f7b73b8a347395ef4d685eb40","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-09T12:11:15.562000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:49.174395Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:49.174395Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:49.174395Z","label":"CVSS score revised","source":"cvelistv5"}]}