CVE-2026-52918
Bluetooth: serialize accept_q access
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize accept_q access bt_sock_poll() walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since the initial Bluetooth import. Protect accept_q with a dedicated lock for queue updates and polling. Also rework bt_accept_dequeue() to take temporary child references under the queue lock before dropping it and locking the child socket.
INFO
Published Date :
June 24, 2026, 7:14 a.m.
Last Modified :
June 24, 2026, 7:14 a.m.
Remotely Exploit :
No
Source :
Linux
Affected Products
The following products are affected by CVE-2026-52918
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Apply kernel updates to protect accept queue access.
- Ensure proper synchronization for queue operations.
- Manage child socket references under queue lock.
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CVE-2026-52918 vulnerability anywhere in the article.