medium5.5
CVE-2026-43022
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_…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.9 before 6.19.12 Versions 6.1.120, 6.6.51, 6.8.9, 7.0 |
References
- NVD record
- CVE.org record
- 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