{"api_version":"1","generated_at":"2026-07-14T00:46:31+00:00","cve":"CVE-2026-53364","urls":{"html":"https://cve.report/CVE-2026-53364","api":"https://cve.report/api/cve/CVE-2026-53364.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53364","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53364"},"summary":{"title":"Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()\n\nhci_le_big_terminate() allocates iso_list_data via kzalloc_obj but\nreturns 0 without freeing it when neither pa_sync_term nor big_sync_term\nflags are set after evaluating the PA and BIG sync connection state.\n\nThis early-return path was introduced when hci_le_big_terminate() was\nrefactored to take struct hci_conn instead of raw u8 parameters, adding\nPA/BIG flag evaluation logic. The existing kfree() on hci_cmd_sync_queue\nfailure does not cover this path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-13 18:16:28","updated_at":"2026-07-13 18:16:28"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/bfa9d28960ed677d556bdf097073bc3129686229","name":"https://git.kernel.org/stable/c/bfa9d28960ed677d556bdf097073bc3129686229","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e6b78019664dfe37c3dc707f50e7b453d6c7726d","name":"https://git.kernel.org/stable/c/e6b78019664dfe37c3dc707f50e7b453d6c7726d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a59d4f4217e6200ca9180643e5738a87d3fa8be0","name":"https://git.kernel.org/stable/c/a59d4f4217e6200ca9180643e5738a87d3fa8be0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53364","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53364","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a7bcffc673de219af2698fbb90627016233de67b e6b78019664dfe37c3dc707f50e7b453d6c7726d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a7bcffc673de219af2698fbb90627016233de67b a59d4f4217e6200ca9180643e5738a87d3fa8be0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a7bcffc673de219af2698fbb90627016233de67b bfa9d28960ed677d556bdf097073bc3129686229 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 087812a6119b4cd5c9d658b48aee40a25707a1c6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16.4 6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.35 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.12 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/hci_conn.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e6b78019664dfe37c3dc707f50e7b453d6c7726d","status":"affected","version":"a7bcffc673de219af2698fbb90627016233de67b","versionType":"git"},{"lessThan":"a59d4f4217e6200ca9180643e5738a87d3fa8be0","status":"affected","version":"a7bcffc673de219af2698fbb90627016233de67b","versionType":"git"},{"lessThan":"bfa9d28960ed677d556bdf097073bc3129686229","status":"affected","version":"a7bcffc673de219af2698fbb90627016233de67b","versionType":"git"},{"status":"affected","version":"087812a6119b4cd5c9d658b48aee40a25707a1c6","versionType":"git"},{"lessThan":"6.17","status":"affected","version":"6.16.4","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/hci_conn.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.17"},{"lessThan":"6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.35","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()\n\nhci_le_big_terminate() allocates iso_list_data via kzalloc_obj but\nreturns 0 without freeing it when neither pa_sync_term nor big_sync_term\nflags are set after evaluating the PA and BIG sync connection state.\n\nThis early-return path was introduced when hci_le_big_terminate() was\nrefactored to take struct hci_conn instead of raw u8 parameters, adding\nPA/BIG flag evaluation logic. The existing kfree() on hci_cmd_sync_queue\nfailure does not cover this path."}],"providerMetadata":{"dateUpdated":"2026-07-13T17:33:52.302Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e6b78019664dfe37c3dc707f50e7b453d6c7726d"},{"url":"https://git.kernel.org/stable/c/a59d4f4217e6200ca9180643e5738a87d3fa8be0"},{"url":"https://git.kernel.org/stable/c/bfa9d28960ed677d556bdf097073bc3129686229"}],"title":"Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53364","datePublished":"2026-07-13T17:33:52.302Z","dateReserved":"2026-06-09T07:44:35.400Z","dateUpdated":"2026-07-13T17:33:52.302Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-13 18:16:28","lastModifiedDate":"2026-07-13 18:16:28","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53364","Ordinal":"1","Title":"Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()","CVE":"CVE-2026-53364","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53364","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()\n\nhci_le_big_terminate() allocates iso_list_data via kzalloc_obj but\nreturns 0 without freeing it when neither pa_sync_term nor big_sync_term\nflags are set after evaluating the PA and BIG sync connection state.\n\nThis early-return path was introduced when hci_le_big_terminate() was\nrefactored to take struct hci_conn instead of raw u8 parameters, adding\nPA/BIG flag evaluation logic. The existing kfree() on hci_cmd_sync_queue\nfailure does not cover this path.","Type":"Description","Title":"Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()"}]}}}