CVE-2026-43022
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5Patch
- https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0Patch
- 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