Answer in brief
CVE-2026-74510 records a High severity (CVSS 7.8) vulnerability in Bluetooth: mgmt: fix UAF in pair command cancellation. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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.
CVSS is 7.8. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <86ed4dd6548ccf277bc691bc912ca06e76b9d80c || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <7c2a152a897cd1c184b2051484d4f74d803e7f4a || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <c569def320aa8b1fde89227e2ea96606790fd86d || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <51be7280980fddc90ebe874a69c2fe8ab02bb46a || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd | 86ed4dd6548ccf277bc691bc912ca06e76b9d80c, 7c2a152a897cd1c184b2051484d4f74d803e7f4a, c569def320aa8b1fde89227e2ea96606790fd86d, 51be7280980fddc90ebe874a69c2fe8ab02bb46a, d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd |
| Linux/Linuxgeneric | 2.6.39 | Not reported |
| Linux/Linuxgeneric | >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <50af4280a587c9971b5388cbc438f1324e626b7b || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <86ed4dd6548ccf277bc691bc912ca06e76b9d80c || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <7c2a152a897cd1c184b2051484d4f74d803e7f4a || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <c569def320aa8b1fde89227e2ea96606790fd86d || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <51be7280980fddc90ebe874a69c2fe8ab02bb46a || >=e9a416b5ce0c0f93819f55d34cf6882196e9c3b2 <d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd | 50af4280a587c9971b5388cbc438f1324e626b7b, 86ed4dd6548ccf277bc691bc912ca06e76b9d80c, 7c2a152a897cd1c184b2051484d4f74d803e7f4a, c569def320aa8b1fde89227e2ea96606790fd86d, 51be7280980fddc90ebe874a69c2fe8ab02bb46a, d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix UAF in pair command cancellation The pairing completion and authentication failure callbacks look up the pending MGMT_OP_PAIR_DEVICE command by walking hdev->mgmt_pending. The lookup returned a command that was still linked on the shared pending list, without keeping mgmt_pending_lock held for the later dereference and removal. A concurrent MGMT_OP_CANCEL_PAIR_DEVICE request can remove and free the same pending command before the callback uses it. The reverse race is also possible when cancel_pair_device() gets a command from pending_find() and a callback removes it before the cancel path dereferences it. This can lead to a use-after-free and a second list_del(). Make the pairing lookup helpers transfer ownership of the pending command by removing it from hdev->mgmt_pending while holding mgmt_pending_lock. The callbacks and cancel path then complete the command and free it directly, so racing paths cannot find or free the same command again. Take a temporary hci_conn reference in cancel_pair_device() because the command completion drops the reference stored in the pending command.
Quoted source text, attributed separately from HOL analysis.