{"cve":{"cve_id":"CVE-2021-47548","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":0.01358,"epss_percentile":0.68092,"epss_as_of":"2026-06-23","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()\n\nThe if statement:\n  if (port >= DSAF_GE_NUM)\n        return;\n\nlimits the value of port less than DSAF_GE_NUM (i.e., 8).\nHowever, if the value of port is 6 or 7, an array overflow could occur:\n  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;\n\nbecause the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).\n\nTo fix this possible array overflow, we first check port and if it is\ngreater than or equal to DSAF_MAX_PORT_NUM, the function returns.","published_at":"2024-05-24T15:09:52.634000Z","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":"none","ssvc_automatable":true,"ssvc_technical_impact":"total","cwes":["CWE-129"],"nvd_references":["https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b","https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1","https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff","https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d","https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803","https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627","https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114"],"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":"2026-06-28T23:16:36.656228Z"},"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 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":"850bfa3b78ea8849fef78ed74f5f2ccf947db0ca","version_start_inclusive":true,"version_end":"948968f8747650447c8f21c9fdba0e1973be040b","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:850bfa3b78ea8849fef78ed74f5f2ccf947db0ca:948968f8747650447c8f21c9fdba0e1973be040b"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"850bfa3b78ea8849fef78ed74f5f2ccf947db0ca","version_start_inclusive":true,"version_end":"abbd5faa0748d0aa95d5191d56ff7a17a6275bd1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:850bfa3b78ea8849fef78ed74f5f2ccf947db0ca:abbd5faa0748d0aa95d5191d56ff7a17a6275bd1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"850bfa3b78ea8849fef78ed74f5f2ccf947db0ca","version_start_inclusive":true,"version_end":"dd07f8971b81ad98cc754b179b331b57f35aa1ff","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:850bfa3b78ea8849fef78ed74f5f2ccf947db0ca:dd07f8971b81ad98cc754b179b331b57f35aa1ff"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"850bfa3b78ea8849fef78ed74f5f2ccf947db0ca","version_start_inclusive":true,"version_end":"99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:850bfa3b78ea8849fef78ed74f5f2ccf947db0ca:99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"850bfa3b78ea8849fef78ed74f5f2ccf947db0ca","version_start_inclusive":true,"version_end":"22519eff7df2d88adcc2568d86046ce1e2b52803","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:850bfa3b78ea8849fef78ed74f5f2ccf947db0ca:22519eff7df2d88adcc2568d86046ce1e2b52803"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"850bfa3b78ea8849fef78ed74f5f2ccf947db0ca","version_start_inclusive":true,"version_end":"fc7ffa7f10b9454a86369405d9814bf141b30627","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:850bfa3b78ea8849fef78ed74f5f2ccf947db0ca:fc7ffa7f10b9454a86369405d9814bf141b30627"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"850bfa3b78ea8849fef78ed74f5f2ccf947db0ca","version_start_inclusive":true,"version_end":"a66998e0fbf213d47d02813b9679426129d0d114","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:850bfa3b78ea8849fef78ed74f5f2ccf947db0ca:a66998e0fbf213d47d02813b9679426129d0d114"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.7","version_start_inclusive":true,"version_end":"4.7","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.7:4.7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"4.7","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:4.7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.9.292","version_start_inclusive":true,"version_end":"4.9.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.9.292:4.9.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.14.257","version_start_inclusive":true,"version_end":"4.14.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.14.257:4.14.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.19.220","version_start_inclusive":true,"version_end":"4.19.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.19.220:4.19.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.4.164","version_start_inclusive":true,"version_end":"5.4.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.4.164:5.4.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.84","version_start_inclusive":true,"version_end":"5.10.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10.84:5.10.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.15.7","version_start_inclusive":true,"version_end":"5.15.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.15.7:5.15.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.16","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.16:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2024-05-24T15:09:52.634000Z","label":"CVE 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