{"cve":{"cve_id":"CVE-2026-53252","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: fix memory leak in error path of hci_alloc_dev()\n\nEarly failures in Bluetooth HCI UART configuration leak SRCU percpu\nmemory.\n\nWhen device initialization fails before hci_register_dev() completes,\nthe HCI_UNREGISTER flag is never set. As a result, when the device\nreference count reaches zero, bt_host_release() evaluates this flag as\nfalse and falls back to a direct kfree(hdev).\n\nBecause hci_release_dev() is bypassed, the SRCU struct initialized\nearly in hci_alloc_dev() is never cleaned up, resulting in a leak of\npercpu memory.\n\nFix the leak by explicitly calling cleanup_srcu_struct() in the\nfallback (unregistered) branch of bt_host_release() before freeing\nthe device.","published_at":"2026-06-25T08:39:43.951000Z","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/5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd","https://git.kernel.org/stable/c/c016118b9e51eeaf5bc93850d4c455a3b583c0aa","https://git.kernel.org/stable/c/0622e527a31d4b44737fed5c1a2ac1fc2cfb5184","https://git.kernel.org/stable/c/bc2efe73c194a74839d7cf57b63880d97e21d309","https://git.kernel.org/stable/c/ce4b4cac3c5749b6aa75e62e2991ae2263f2f889","https://git.kernel.org/stable/c/f82799407a50af7bcacacf09cc9b279af8fe9b81","https://git.kernel.org/stable/c/37b3009bf5976e8ab77c8b9a9bc3bbd7ff49e37f"],"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":"6.15.5","version_start_inclusive":true,"version_end":"6.16","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:6.15.5:6.16"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.16","version_start_inclusive":true,"version_end":"6.16","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.16:6.16"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.16","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.16"},{"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":"90dee0a0ff84fac8accd5be98412b3819f667149","version_start_inclusive":true,"version_end":"5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:90dee0a0ff84fac8accd5be98412b3819f667149:5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"c56b177efce8b62798e4d96bdb9867106cb7c4a0","version_start_inclusive":true,"version_end":"c016118b9e51eeaf5bc93850d4c455a3b583c0aa","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:c56b177efce8b62798e4d96bdb9867106cb7c4a0:c016118b9e51eeaf5bc93850d4c455a3b583c0aa"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"bc0819a25e04cd68ef3568cfa51b63118fea39a7","version_start_inclusive":true,"version_end":"0622e527a31d4b44737fed5c1a2ac1fc2cfb5184","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:bc0819a25e04cd68ef3568cfa51b63118fea39a7:0622e527a31d4b44737fed5c1a2ac1fc2cfb5184"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ce23b73f0f27e2dbeb81734a79db710f05aa33c6","version_start_inclusive":true,"version_end":"bc2efe73c194a74839d7cf57b63880d97e21d309","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ce23b73f0f27e2dbeb81734a79db710f05aa33c6:bc2efe73c194a74839d7cf57b63880d97e21d309"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1d6123102e9fbedc8d25bf4731da6d513173e49e","version_start_inclusive":true,"version_end":"ce4b4cac3c5749b6aa75e62e2991ae2263f2f889","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1d6123102e9fbedc8d25bf4731da6d513173e49e:ce4b4cac3c5749b6aa75e62e2991ae2263f2f889"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1d6123102e9fbedc8d25bf4731da6d513173e49e","version_start_inclusive":true,"version_end":"f82799407a50af7bcacacf09cc9b279af8fe9b81","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1d6123102e9fbedc8d25bf4731da6d513173e49e:f82799407a50af7bcacacf09cc9b279af8fe9b81"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1d6123102e9fbedc8d25bf4731da6d513173e49e","version_start_inclusive":true,"version_end":"37b3009bf5976e8ab77c8b9a9bc3bbd7ff49e37f","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1d6123102e9fbedc8d25bf4731da6d513173e4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published","source":null}]}