CVE-2026-93052

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

misc: bcm-vk: Use acquire/release for msgq_inited

bcm_vk_sync_msgq() fills the message queue information and then sets

msgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the

message queues and their cached queue information.

atomic_set()/atomic_read() do not order those accesses. A reader can see

msgq_inited set while still seeing stale queue information. Use release

when publishing the initialized queues and acquire when checking the gate.

Keep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the

gate and does not publish queue state to readers.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References