{"cve":{"cve_id":"CVE-2026-53036","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, arm64: Fix off-by-one in check_imm signed range check\n\ncheck_imm(bits, imm) is used in the arm64 BPF JIT to verify that\na branch displacement (in arm64 instruction units) fits into the\nsigned N-bit immediate field of a B, B.cond or CBZ/CBNZ encoding\nbefore it is handed to the encoder. The macro currently tests for\n(imm > 0 && imm >> bits) || (imm < 0 && ~imm >> bits) which admits\nvalues in [-2^N, 2^N) — effectively a signed (N+1)-bit range. A\nsigned N-bit field only holds [-2^(N-1), 2^(N-1)), so the check\nadmits one extra bit of range on each side.\n\nIn particular, for check_imm19(), values in [2^18, 2^19) slip past\nthe check but do not fit into the 19-bit signed imm19 field of\nB.cond. aarch64_insn_encode_immediate() then masks the raw value\ninto the 19-bit field, setting bit 18 (the sign bit) and flipping\na forward branch into a backward one. Same class of issue exists\nfor check_imm26() and the B/BL encoding. Shift by (bits - 1)\ninstead of bits so the actual signed N-bit range is enforced.","published_at":"2026-06-24T16:29:43.449000Z","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/a5dfeb3b61065039488342d43ae06d4729d955d4","https://git.kernel.org/stable/c/7fd3b41260c6120e7b60164afea5d961af6224f9","https://git.kernel.org/stable/c/6927f0d6794aa73318bbfa929f1ff6065b0620df","https://git.kernel.org/stable/c/1a113b5497297871699cd498b1b83542e0db7f15","https://git.kernel.org/stable/c/fb74defa1cca1a73177c0c761e641332e4f979a3","https://git.kernel.org/stable/c/1dd8be4ec722ce54e4cace59f3a4ba658111b3ec"],"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":"2026-06-28T23:30:49.890169Z"},"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":"e54bcde3d69d40023ae77727213d14f920eb264a","version_start_inclusive":true,"version_end":"a5dfeb3b61065039488342d43ae06d4729d955d4","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:e54bcde3d69d40023ae77727213d14f920eb264a:a5dfeb3b61065039488342d43ae06d4729d955d4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"e54bcde3d69d40023ae77727213d14f920eb264a","version_start_inclusive":true,"version_end":"7fd3b41260c6120e7b60164afea5d961af6224f9","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:e54bcde3d69d40023ae77727213d14f920eb264a:7fd3b41260c6120e7b60164afea5d961af6224f9"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"e54bcde3d69d40023ae77727213d14f920eb264a","version_start_inclusive":true,"version_end":"6927f0d6794aa73318bbfa929f1ff6065b0620df","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:e54bcde3d69d40023ae77727213d14f920eb264a:6927f0d6794aa73318bbfa929f1ff6065b0620df"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"e54bcde3d69d40023ae77727213d14f920eb264a","version_start_inclusive":true,"version_end":"1a113b5497297871699cd498b1b83542e0db7f15","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:e54bcde3d69d40023ae77727213d14f920eb264a:1a113b5497297871699cd498b1b83542e0db7f15"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"e54bcde3d69d40023ae77727213d14f920eb264a","version_start_inclusive":true,"version_end":"fb74defa1cca1a73177c0c761e641332e4f979a3","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:e54bcde3d69d40023ae77727213d14f920eb264a:fb74defa1cca1a73177c0c761e641332e4f979a3"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"e54bcde3d69d40023ae77727213d14f920eb264a","version_start_inclusive":true,"version_end":"1dd8be4ec722ce54e4cace59f3a4ba658111b3ec","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:e54bcde3d69d40023ae77727213d14f920eb264a:1dd8be4ec722ce54e4cace59f3a4ba658111b3ec"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3.18","version_start_inclusive":true,"version_end":"3.18","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:3.18:3.18"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"3.18","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:3.18"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.175","version_start_inclusive":true,"version_end":"6.1.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.1.175:6.1.*"},{"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_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/a5dfeb3b61065039488342d43ae06d4729d955d4","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/7fd3b41260c6120e7b60164afea5d961af6224f9","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/6927f0d6794aa73318bbfa929f1ff6065b0620df","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1a113b5497297871699cd498b1b83542e0db7f15","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/fb74defa1cca1a73177c0c761e641332e4f979a3","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1dd8be4ec722ce54e4cace59f3a4ba658111b3ec","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:29:43.449000Z","label":"CVE published","source":null}]}