CVE-2026-43022

MEDIUM

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.

CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 5/1/2026Modified: 10/21/2026

Related Intelligence (1)

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Rapid7

References (5)

https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5Patchhttps://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0Patchhttps://git.kernel.org/stable/c/5cfa4f537a056c91ac6c09bc3ab58a4455217df7https://git.kernel.org/stable/c/799e2e5fbf3f14874b5c6cc289a0dd68b2ca1979https://git.kernel.org/stable/c/dfee8da127bafa46530b72347bce3ccae736296d