CVE-2026-43022
Published: May 2, 2026Last modified: November 3, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists hci_cmd_sync_queue_once() needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources. Change the function to return -EEXIST if queue item already exists. Modify all callsites to handle that.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.191-r0) |
| 25 LTS | linux-lts | Fixed (6.12.115-r0) | |
| Stream | linux-lts | Fixed (6.18.58-r0) |
References
- https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5
- https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0
- https://git.kernel.org/stable/c/5cfa4f537a056c91ac6c09bc3ab58a4455217df7
- https://git.kernel.org/stable/c/799e2e5fbf3f14874b5c6cc289a0dd68b2ca1979
- https://git.kernel.org/stable/c/da531f7108218ab6a779861e4646562fc769c9b3
- https://git.kernel.org/stable/c/dfee8da127bafa46530b72347bce3ccae736296d