{"cve":{"cve_id":"CVE-2026-53255","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\nBluetooth: MGMT: validate advertising TLV before type checks\n\ntlv_data_is_valid() reads each advertising data field length from\ndata[i], then inspects data[i + 1] for managed EIR types before\nchecking that the current field still fits inside the supplied buffer.\n\nA malformed field whose length byte is the last byte of the buffer can\ntherefore make the parser read one byte past the advertising data.\n\nKASAN reported the following when a malformed MGMT_OP_ADD_ADVERTISING\nrequest reached that path:\n\n  BUG: KASAN: vmalloc-out-of-bounds in tlv_data_is_valid()\n  Read of size 1\n  Call trace:\n    tlv_data_is_valid()\n    add_advertising()\n    hci_mgmt_cmd()\n    hci_sock_sendmsg()\n\nMove the existing element-length check before any type-octet inspection\nso each non-empty element is proven to contain its type byte before the\nparser looks at data[i + 1].","published_at":"2026-06-25T08:39:45.934000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"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/13ad995071a06570668dd8daab3616c247c72080","https://git.kernel.org/stable/c/06fcbd79c3c360a50f9be9d370769bbd738d0976","https://git.kernel.org/stable/c/f7093ac233c1e7f51d125534f46067772a113175","https://git.kernel.org/stable/c/74c08e4db35a476c3462aeb65846f955be732626","https://git.kernel.org/stable/c/18fea1cb0c2599752e908c8217490f73ddd33e00","https://git.kernel.org/stable/c/1a3c8ffbb469859b076445af44bdfa6a711d483e","https://git.kernel.org/stable/c/2a3f3ed9e198ae23c15859ace2f9ca6cfdc35b57","https://git.kernel.org/stable/c/de23fb62259aa01d294f77238ae3b835eb674413"],"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":"2026-06-28T23:30:51.545322Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"13ad995071a06570668dd8daab3616c247c72080","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:13ad995071a06570668dd8daab3616c247c72080"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"06fcbd79c3c360a50f9be9d370769bbd738d0976","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:06fcbd79c3c360a50f9be9d370769bbd738d0976"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"f7093ac233c1e7f51d125534f46067772a113175","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:f7093ac233c1e7f51d125534f46067772a113175"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"74c08e4db35a476c3462aeb65846f955be732626","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:74c08e4db35a476c3462aeb65846f955be732626"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"18fea1cb0c2599752e908c8217490f73ddd33e00","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:18fea1cb0c2599752e908c8217490f73ddd33e00"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"1a3c8ffbb469859b076445af44bdfa6a711d483e","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:1a3c8ffbb469859b076445af44bdfa6a711d483e"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"2a3f3ed9e198ae23c15859ace2f9ca6cfdc35b57","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:2a3f3ed9e198ae23c15859ace2f9ca6cfdc35b57"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"2bb36870e8cb29949ef9acec37129cd8e70f1857","version_start_inclusive":true,"version_end":"de23fb62259aa01d294f77238ae3b835eb674413","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:2bb36870e8cb29949ef9acec37129cd8e70f1857:de23fb62259aa01d294f77238ae3b835eb674413"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.9","version_start_inclusive":true,"version_end":"4.9","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.9:4.9"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"4.9","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:4.9"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.259","version_start_inclusive":true,"version_end":"5.10.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10.259:5.10.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.15.210","version_start_inclusive":true,"version_end":"5.15.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.15.210:5.15.*"},{"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":"6.6.143","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/13ad995071a06570668dd8daab3616c247c72080","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/06fcbd79c3c360a50f9be9d370769bbd738d0976","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/f7093ac233c1e7f51d125534f46067772a113175","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/74c08e4db35a476c3462aeb65846f955be732626","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/18fea1cb0c2599752e908c8217490f73ddd33e00","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1a3c8ffbb469859b076445af44bdfa6a711d483e","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/2a3f3ed9e198ae23c15859ace2f9ca6cfdc35b57","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/de23fb62259aa01d294f77238ae3b835eb674413","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-25T08:39:45.934000Z","label":"CVE published","source":null}]}