{"cve":{"cve_id":"CVE-2026-53073","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: hci_ldisc: Clear HCI_UART_PROTO_INIT on error\n\nWhen hci_register_dev() fails in hci_uart_register_dev()\nHCI_UART_PROTO_INIT is not cleared before calling hu->proto->close(hu)\nand setting hu->hdev to NULL. This means incoming UART data will reach\nthe protocol-specific recv handler in hci_uart_tty_receive() after\nresources are freed.\n\nClear HCI_UART_PROTO_INIT with a write lock before calling\nhu->proto->close() and setting hu->hdev to NULL. The write lock ensures\nall active readers have completed and no new reader can enter the\nprotocol recv path before resources are freed.\n\nThis allows the protocol-specific recv functions to remove the\n\"HCI_UART_REGISTERED\" guard without risking a null pointer dereference\nif hci_register_dev() fails.","published_at":"2026-06-24T16:30:14.463000Z","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/ebb39b2d81731b83ee71a1ba6dd0291a57b5ac07","https://git.kernel.org/stable/c/ed4033fb85ccaaf6c3983be3c7b037e48253d232","https://git.kernel.org/stable/c/356dee1bcac4d0d9152390561fa63331ebff211b","https://git.kernel.org/stable/c/a673cf6c4ac702cb79ac1f4d7fc4de763a6a3e40","https://git.kernel.org/stable/c/f4b69c35813c432973d340d3600c01de106ed474","https://git.kernel.org/stable/c/3daa5818e473ed60eb69d8b5c71b651909d28c5a","https://git.kernel.org/stable/c/194f029a4d7f739e44ebc1f473120187b4de5104","https://git.kernel.org/stable/c/68d39ea5e0adc9ecaea1ce8abd842ec972eb8718"],"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":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":"a40f94f7caa8d3421b64f63ac31bc0f24c890f39","version_start_inclusive":true,"version_end":"ebb39b2d81731b83ee71a1ba6dd0291a57b5ac07","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:a40f94f7caa8d3421b64f63ac31bc0f24c890f39:ebb39b2d81731b83ee71a1ba6dd0291a57b5ac07"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"9e5a0f5777162e503400c70c6ed25fbbe2d38799","version_start_inclusive":true,"version_end":"ed4033fb85ccaaf6c3983be3c7b037e48253d232","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:9e5a0f5777162e503400c70c6ed25fbbe2d38799:ed4033fb85ccaaf6c3983be3c7b037e48253d232"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"80f14e9de6a43a0bd8194cad1003a3e6dcbc3984","version_start_inclusive":true,"version_end":"356dee1bcac4d0d9152390561fa63331ebff211b","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:80f14e9de6a43a0bd8194cad1003a3e6dcbc3984:356dee1bcac4d0d9152390561fa63331ebff211b"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"02e1bcdfdf769974e7e9fa285e295cd9852e2a38","version_start_inclusive":true,"version_end":"a673cf6c4ac702cb79ac1f4d7fc4de763a6a3e40","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:02e1bcdfdf769974e7e9fa285e295cd9852e2a38:a673cf6c4ac702cb79ac1f4d7fc4de763a6a3e40"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"281782d2c6730241e300d630bb9f200d831ede71","version_start_inclusive":true,"version_end":"f4b69c35813c432973d340d3600c01de106ed474","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:281782d2c6730241e300d630bb9f200d831ede71:f4b69c35813c432973d340d3600c01de106ed474"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5df5dafc171b90d0b8d51547a82657cd5a1986c7","version_start_inclusive":true,"version_end":"3daa5818e473ed60eb69d8b5c71b651909d28c5a","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5df5dafc171b90d0b8d51547a82657cd5a1986c7:3daa5818e473ed60eb69d8b5c71b651909d28c5a"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5df5dafc171b90d0b8d51547a82657cd5a1986c7","version_start_inclusive":true,"version_end":"194f029a4d7f739e44ebc1f473120187b4de5104","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5df5dafc171b90d0b8d51547a82657cd5a1986c7:194f029a4d7f739e44ebc1f473120187b4de5104"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5df5dafc171b90d0b8d51547a82657cd5a1986c7","version_start_inclusive":true,"version_end":"68d39ea5e0adc9ecaea1ce8abd842ec972eb8718","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5df5dafc171b90d0b8d51547a82657cd5a1986c7:68d39ea5e0adc9ecaea1ce8abd842ec972eb8718"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1dcf08fcff5ca529de6dc0395091f28854f4e54a","version_start_inclusive":true,"version_end":"1dcf08fcff5ca529de6dc0395091f28854f4e54a","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:1dcf08fcff5ca529de6dc0395091f28854f4e54a:1dcf08fcff5ca529de6dc0395091f28854f4e54a"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_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":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/ebb39b2d81731b83ee71a1ba6dd0291a57b5ac07","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/ed4033fb85ccaaf6c3983be3c7b037e48253d232","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/356dee1bcac4d0d9152390561fa63331ebff211b","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/a673cf6c4ac702cb79ac1f4d7fc4de763a6a3e40","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/f4b69c35813c432973d340d3600c01de106ed474","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/3daa5818e473ed60eb69d8b5c71b651909d28c5a","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/194f029a4d7f739e44ebc1f473120187b4de5104","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/68d39ea5e0adc9ecaea1ce8abd842ec972eb8718","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:30:14.463000Z","label":"CVE published","source":null}]}