{"cve":{"cve_id":"CVE-2026-53076","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\nbpf: Fix OOB in pcpu_init_value\n\nAn out-of-bounds read occurs when copying element from a\nBPF_MAP_TYPE_CGROUP_STORAGE map to another pcpu map with the\nsame value_size that is not rounded up to 8 bytes.\n\nThe issue happens when:\n1. A CGROUP_STORAGE map is created with value_size not aligned to\n   8 bytes (e.g., 4 bytes)\n2. A pcpu map is created with the same value_size (e.g., 4 bytes)\n3. Update element in 2 with data in 1\n\npcpu_init_value assumes that all sources are rounded up to 8 bytes,\nand invokes copy_map_value_long to make a data copy, However, the\nassumption doesn't stand since there are some cases where the source\nmay not be rounded up to 8 bytes, e.g., CGROUP_STORAGE, skb->data.\nthe verifier verifies exactly the size that the source claims, not\nthe size rounded up to 8 bytes by kernel, an OOB happens when the\nsource has only 4 bytes while the copy size(4) is rounded up to 8.","published_at":"2026-06-24T16:30:17.092000Z","last_modified_at":null,"cvss_v3_score":7.1,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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/e19c5ed9f1922a6854073f8651a63fa7be26e9e9","https://git.kernel.org/stable/c/e0378419b0e20178b5d100b27c9cc7e51064202e","https://git.kernel.org/stable/c/6086079e6d1c32ba4c4b422612b8aebb1129a96c","https://git.kernel.org/stable/c/634a793d0e1c822412095d25a1338f8831ad894c","https://git.kernel.org/stable/c/576afddfee8d1108ee299bf10f581593540d1a36"],"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":"2026-06-28T23:30:50.753831Z"},"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":"N","value_label":"None"},{"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":"d3bec0138bfbe58606fc1d6f57a4cdc1a20218db","version_start_inclusive":true,"version_end":"e19c5ed9f1922a6854073f8651a63fa7be26e9e9","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:d3bec0138bfbe58606fc1d6f57a4cdc1a20218db:e19c5ed9f1922a6854073f8651a63fa7be26e9e9"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"d3bec0138bfbe58606fc1d6f57a4cdc1a20218db","version_start_inclusive":true,"version_end":"e0378419b0e20178b5d100b27c9cc7e51064202e","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:d3bec0138bfbe58606fc1d6f57a4cdc1a20218db:e0378419b0e20178b5d100b27c9cc7e51064202e"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"d3bec0138bfbe58606fc1d6f57a4cdc1a20218db","version_start_inclusive":true,"version_end":"6086079e6d1c32ba4c4b422612b8aebb1129a96c","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:d3bec0138bfbe58606fc1d6f57a4cdc1a20218db:6086079e6d1c32ba4c4b422612b8aebb1129a96c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"d3bec0138bfbe58606fc1d6f57a4cdc1a20218db","version_start_inclusive":true,"version_end":"634a793d0e1c822412095d25a1338f8831ad894c","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:d3bec0138bfbe58606fc1d6f57a4cdc1a20218db:634a793d0e1c822412095d25a1338f8831ad894c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"d3bec0138bfbe58606fc1d6f57a4cdc1a20218db","version_start_inclusive":true,"version_end":"576afddfee8d1108ee299bf10f581593540d1a36","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:d3bec0138bfbe58606fc1d6f57a4cdc1a20218db:576afddfee8d1108ee299bf10f581593540d1a36"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"c602ad2b52dcbca5af08e5137bd5575c039b52e3","version_start_inclusive":true,"version_end":"c602ad2b52dcbca5af08e5137bd5575c039b52e3","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:c602ad2b52dcbca5af08e5137bd5575c039b52e3:c602ad2b52dcbca5af08e5137bd5575c039b52e3"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ab68b940dd6f7b5f8e2557937162dcb8a0583a05","version_start_inclusive":true,"version_end":"ab68b940dd6f7b5f8e2557937162dcb8a0583a05","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:ab68b940dd6f7b5f8e2557937162dcb8a0583a05:ab68b940dd6f7b5f8e2557937162dcb8a0583a05"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.4.78","version_start_inclusive":true,"version_end":"5.5","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5.4.78:5.5"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.9.9","version_start_inclusive":true,"version_end":"5.10","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5.9.9:5.10"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10","version_start_inclusive":true,"version_end":"5.10","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10:5.10"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"5.10","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:5.10"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.141","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.141:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.91","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.91:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.33","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.33:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.10","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.10:7.0.*"},{"vendor_s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published","source":null}]}