Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.12.1, < 5.10.259 |
References
- https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336Patch
- https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945aPatch
- https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5Patch
- https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3Patch
- https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681cPatch
- https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274cPatch
- https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1Patch
- https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88Patch
FAQ
What is CVE-2026-52918?
CVE-2026-52918 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 unlin...
How severe is CVE-2026-52918?
CVE-2026-52918 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-52918?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.