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.
Affected products
linux: linux kernel
References6
- git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5 Patch
- git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0 Patch
- git.kernel.org/stable/c/5cfa4f537a056c91ac6c09bc3ab58a4455217df7
- git.kernel.org/stable/c/799e2e5fbf3f14874b5c6cc289a0dd68b2ca1979
- git.kernel.org/stable/c/da531f7108218ab6a779861e4646562fc769c9b3
- git.kernel.org/stable/c/dfee8da127bafa46530b72347bce3ccae736296d
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 5 · as of 13 November 2026
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