{"api_version":"1","generated_at":"2026-09-09T06:27:27+00:00","cve":"CVE-2026-80762","urls":{"html":"https://cve.report/CVE-2026-80762","api":"https://cve.report/api/cve/CVE-2026-80762.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80762","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80762"},"summary":{"title":"Bluetooth: hci_sync: Fix accept list UAF during suspend","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Fix accept list UAF during suspend\n\nhci_update_event_filter_sync() walks hdev->accept_list while sending a\nsynchronous HCI command for each remote-wakeup device.  The suspend path\nholds hdev->req_lock, but accept-list updates are serialized by hdev->lock.\nConsequently, remove_device() can free the current list entry during the\ncontroller wait.\n\nThe following interleaving causes the use-after-free:\n\n  hci_update_event_filter_sync()    remove_device()\n  fetch accept-list entry\n  hci_set_event_filter_sync()\n    wait for controller response    hci_dev_lock()\n                                    list_del()\n                                    kfree()\n                                    hci_dev_unlock()\n  read the freed list.next\n\nKASAN reported:\n\n  BUG: KASAN: slab-use-after-free in hci_suspend_sync+0x835/0x910\n  Read of size 8 at addr ffff88810bec8440 by task kworker/0:1/10\n  Workqueue: events vhci_suspend_work\n  Call Trace:\n   hci_suspend_sync+0x835/0x910\n   hci_suspend_dev+0x182/0x450\n   process_one_work+0x661/0x1090\n   worker_thread+0x45b/0xd10\n\n  Allocated by task 86:\n   hci_bdaddr_list_add_with_flags+0x1a8/0x400\n   add_device+0x381/0x820\n   hci_sock_sendmsg+0x1033/0x1ea0\n\n  Freed by task 91:\n   kfree+0x131/0x3c0\n   remove_device+0x429/0xb70\n   hci_sock_sendmsg+0x1033/0x1ea0\n\nSnapshot the remote-wakeup addresses under hdev->lock.  Release the lock\nbefore sending HCI commands.  Clear the controller event filter before\nbuilding the snapshot, and skip allocation and the second list traversal\nwhen there are no matching entries.  This preserves the original filter\nand scan-state updates without retaining an accept-list node across a\ncontroller wait.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-04 16:18:01","updated_at":"2026-09-04 16:18:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/fe93a697a7a92fa9adf78c9ff67a10db3193290c","name":"https://git.kernel.org/stable/c/fe93a697a7a92fa9adf78c9ff67a10db3193290c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/29c59212a507804d7616b8abf491d30b4ab8e75f","name":"https://git.kernel.org/stable/c/29c59212a507804d7616b8abf491d30b4ab8e75f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/87ad116ac3abc6f2ce2b5b6c488f633003581eee","name":"https://git.kernel.org/stable/c/87ad116ac3abc6f2ce2b5b6c488f633003581eee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bb5f5414d1a6272a16f68684e998f4063dd19f57","name":"https://git.kernel.org/stable/c/bb5f5414d1a6272a16f68684e998f4063dd19f57","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b5181516a9f5c2fdb3271cdad72a5b16c6963a44","name":"https://git.kernel.org/stable/c/b5181516a9f5c2fdb3271cdad72a5b16c6963a44","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f57b399c4fa1501b2d5451f52d861ece86bcf3db","name":"https://git.kernel.org/stable/c/f57b399c4fa1501b2d5451f52d861ece86bcf3db","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/95bb57bc11a91caf042ad00fca85e480d3fda37f","name":"https://git.kernel.org/stable/c/95bb57bc11a91caf042ad00fca85e480d3fda37f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80762","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80762","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 182ee45da083db4e3e621541ccf255bfa9652214 bb5f5414d1a6272a16f68684e998f4063dd19f57 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 182ee45da083db4e3e621541ccf255bfa9652214 b5181516a9f5c2fdb3271cdad72a5b16c6963a44 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 182ee45da083db4e3e621541ccf255bfa9652214 87ad116ac3abc6f2ce2b5b6c488f633003581eee git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 182ee45da083db4e3e621541ccf255bfa9652214 fe93a697a7a92fa9adf78c9ff67a10db3193290c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 182ee45da083db4e3e621541ccf255bfa9652214 95bb57bc11a91caf042ad00fca85e480d3fda37f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 182ee45da083db4e3e621541ccf255bfa9652214 29c59212a507804d7616b8abf491d30b4ab8e75f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 182ee45da083db4e3e621541ccf255bfa9652214 f57b399c4fa1501b2d5451f52d861ece86bcf3db git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.187 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.156 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.108 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.47 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.11 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.1 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"80762","cve":"CVE-2026-80762","epss":"0.001730000","percentile":"0.068230000","score_date":"2026-09-07","updated_at":"2026-09-08 00:05:27"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/hci_sync.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bb5f5414d1a6272a16f68684e998f4063dd19f57","status":"affected","version":"182ee45da083db4e3e621541ccf255bfa9652214","versionType":"git"},{"lessThan":"b5181516a9f5c2fdb3271cdad72a5b16c6963a44","status":"affected","version":"182ee45da083db4e3e621541ccf255bfa9652214","versionType":"git"},{"lessThan":"87ad116ac3abc6f2ce2b5b6c488f633003581eee","status":"affected","version":"182ee45da083db4e3e621541ccf255bfa9652214","versionType":"git"},{"lessThan":"fe93a697a7a92fa9adf78c9ff67a10db3193290c","status":"affected","version":"182ee45da083db4e3e621541ccf255bfa9652214","versionType":"git"},{"lessThan":"95bb57bc11a91caf042ad00fca85e480d3fda37f","status":"affected","version":"182ee45da083db4e3e621541ccf255bfa9652214","versionType":"git"},{"lessThan":"29c59212a507804d7616b8abf491d30b4ab8e75f","status":"affected","version":"182ee45da083db4e3e621541ccf255bfa9652214","versionType":"git"},{"lessThan":"f57b399c4fa1501b2d5451f52d861ece86bcf3db","status":"affected","version":"182ee45da083db4e3e621541ccf255bfa9652214","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/hci_sync.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.187","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.156","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.108","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.47","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.11","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.187","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.156","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.108","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.47","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.11","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.1","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Fix accept list UAF during suspend\n\nhci_update_event_filter_sync() walks hdev->accept_list while sending a\nsynchronous HCI command for each remote-wakeup device.  The suspend path\nholds hdev->req_lock, but accept-list updates are serialized by hdev->lock.\nConsequently, remove_device() can free the current list entry during the\ncontroller wait.\n\nThe following interleaving causes the use-after-free:\n\n  hci_update_event_filter_sync()    remove_device()\n  fetch accept-list entry\n  hci_set_event_filter_sync()\n    wait for controller response    hci_dev_lock()\n                                    list_del()\n                                    kfree()\n                                    hci_dev_unlock()\n  read the freed list.next\n\nKASAN reported:\n\n  BUG: KASAN: slab-use-after-free in hci_suspend_sync+0x835/0x910\n  Read of size 8 at addr ffff88810bec8440 by task kworker/0:1/10\n  Workqueue: events vhci_suspend_work\n  Call Trace:\n   hci_suspend_sync+0x835/0x910\n   hci_suspend_dev+0x182/0x450\n   process_one_work+0x661/0x1090\n   worker_thread+0x45b/0xd10\n\n  Allocated by task 86:\n   hci_bdaddr_list_add_with_flags+0x1a8/0x400\n   add_device+0x381/0x820\n   hci_sock_sendmsg+0x1033/0x1ea0\n\n  Freed by task 91:\n   kfree+0x131/0x3c0\n   remove_device+0x429/0xb70\n   hci_sock_sendmsg+0x1033/0x1ea0\n\nSnapshot the remote-wakeup addresses under hdev->lock.  Release the lock\nbefore sending HCI commands.  Clear the controller event filter before\nbuilding the snapshot, and skip allocation and the second list traversal\nwhen there are no matching entries.  This preserves the original filter\nand scan-state updates without retaining an accept-list node across a\ncontroller wait."}],"providerMetadata":{"dateUpdated":"2026-09-04T15:12:34.354Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/bb5f5414d1a6272a16f68684e998f4063dd19f57"},{"url":"https://git.kernel.org/stable/c/b5181516a9f5c2fdb3271cdad72a5b16c6963a44"},{"url":"https://git.kernel.org/stable/c/87ad116ac3abc6f2ce2b5b6c488f633003581eee"},{"url":"https://git.kernel.org/stable/c/fe93a697a7a92fa9adf78c9ff67a10db3193290c"},{"url":"https://git.kernel.org/stable/c/95bb57bc11a91caf042ad00fca85e480d3fda37f"},{"url":"https://git.kernel.org/stable/c/29c59212a507804d7616b8abf491d30b4ab8e75f"},{"url":"https://git.kernel.org/stable/c/f57b399c4fa1501b2d5451f52d861ece86bcf3db"}],"title":"Bluetooth: hci_sync: Fix accept list UAF during suspend","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80762","datePublished":"2026-09-04T15:12:34.354Z","dateReserved":"2026-08-26T14:34:25.791Z","dateUpdated":"2026-09-04T15:12:34.354Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-04 16:18:01","lastModifiedDate":"2026-09-04 16:18:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80762","Ordinal":"1","Title":"Bluetooth: hci_sync: Fix accept list UAF during suspend","CVE":"CVE-2026-80762","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80762","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Fix accept list UAF during suspend\n\nhci_update_event_filter_sync() walks hdev->accept_list while sending a\nsynchronous HCI command for each remote-wakeup device.  The suspend path\nholds hdev->req_lock, but accept-list updates are serialized by hdev->lock.\nConsequently, remove_device() can free the current list entry during the\ncontroller wait.\n\nThe following interleaving causes the use-after-free:\n\n  hci_update_event_filter_sync()    remove_device()\n  fetch accept-list entry\n  hci_set_event_filter_sync()\n    wait for controller response    hci_dev_lock()\n                                    list_del()\n                                    kfree()\n                                    hci_dev_unlock()\n  read the freed list.next\n\nKASAN reported:\n\n  BUG: KASAN: slab-use-after-free in hci_suspend_sync+0x835/0x910\n  Read of size 8 at addr ffff88810bec8440 by task kworker/0:1/10\n  Workqueue: events vhci_suspend_work\n  Call Trace:\n   hci_suspend_sync+0x835/0x910\n   hci_suspend_dev+0x182/0x450\n   process_one_work+0x661/0x1090\n   worker_thread+0x45b/0xd10\n\n  Allocated by task 86:\n   hci_bdaddr_list_add_with_flags+0x1a8/0x400\n   add_device+0x381/0x820\n   hci_sock_sendmsg+0x1033/0x1ea0\n\n  Freed by task 91:\n   kfree+0x131/0x3c0\n   remove_device+0x429/0xb70\n   hci_sock_sendmsg+0x1033/0x1ea0\n\nSnapshot the remote-wakeup addresses under hdev->lock.  Release the lock\nbefore sending HCI commands.  Clear the controller event filter before\nbuilding the snapshot, and skip allocation and the second list traversal\nwhen there are no matching entries.  This preserves the original filter\nand scan-state updates without retaining an accept-list node across a\ncontroller wait.","Type":"Description","Title":"Bluetooth: hci_sync: Fix accept list UAF during suspend"}]}}}