Answer in brief
CVE-2026-80762 records a Unknown severity vulnerability in Bluetooth: hci_sync: Fix accept list UAF during suspend. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=182ee45da083db4e3e621541ccf255bfa9652214 <bb5f5414d1a6272a16f68684e998f4063dd19f57 || >=182ee45da083db4e3e621541ccf255bfa9652214 <b5181516a9f5c2fdb3271cdad72a5b16c6963a44 || >=182ee45da083db4e3e621541ccf255bfa9652214 <87ad116ac3abc6f2ce2b5b6c488f633003581eee || >=182ee45da083db4e3e621541ccf255bfa9652214 <fe93a697a7a92fa9adf78c9ff67a10db3193290c || >=182ee45da083db4e3e621541ccf255bfa9652214 <95bb57bc11a91caf042ad00fca85e480d3fda37f || >=182ee45da083db4e3e621541ccf255bfa9652214 <29c59212a507804d7616b8abf491d30b4ab8e75f || >=182ee45da083db4e3e621541ccf255bfa9652214 <f57b399c4fa1501b2d5451f52d861ece86bcf3db | bb5f5414d1a6272a16f68684e998f4063dd19f57, b5181516a9f5c2fdb3271cdad72a5b16c6963a44, 87ad116ac3abc6f2ce2b5b6c488f633003581eee, fe93a697a7a92fa9adf78c9ff67a10db3193290c, 95bb57bc11a91caf042ad00fca85e480d3fda37f, 29c59212a507804d7616b8abf491d30b4ab8e75f, f57b399c4fa1501b2d5451f52d861ece86bcf3db |
| Linux/Linuxgeneric | 5.17 | Not reported |
Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 4, 2026
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Fix accept list UAF during suspend hci_update_event_filter_sync() walks hdev->accept_list while sending a synchronous HCI command for each remote-wakeup device. The suspend path holds hdev->req_lock, but accept-list updates are serialized by hdev->lock. Consequently, remove_device() can free the current list entry during the controller wait. The following interleaving causes the use-after-free: hci_update_event_filter_sync() remove_device() fetch accept-list entry hci_set_event_filter_sync() wait for controller response hci_dev_lock() list_del() kfree() hci_dev_unlock() read the freed list.next KASAN reported: BUG: KASAN: slab-use-after-free in hci_suspend_sync+0x835/0x910 Read of size 8 at addr ffff88810bec8440 by task kworker/0:1/10 Workqueue: events vhci_suspend_work Call Trace: hci_suspend_sync+0x835/0x910 hci_suspend_dev+0x182/0x450 process_one_work+0x661/0x1090 worker_thread+0x45b/0xd10 Allocated by task 86: hci_bdaddr_list_add_with_flags+0x1a8/0x400 add_device+0x381/0x820 hci_sock_sendmsg+0x1033/0x1ea0 Freed by task 91: kfree+0x131/0x3c0 remove_device+0x429/0xb70 hci_sock_sendmsg+0x1033/0x1ea0 Snapshot the remote-wakeup addresses under hdev->lock. Release the lock before sending HCI commands. Clear the controller event filter before building the snapshot, and skip allocation and the second list traversal when there are no matching entries. This preserves the original filter and scan-state updates without retaining an accept-list node across a controller wait.
Quoted source text, attributed separately from HOL analysis.