PT-2026-51711 · Linux · Linux

Publicado 2026-06-24 · Atualizado 2026-06-24 · CVE-2026-52918

NVD

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.

Identificadores relacionados

CVE-2026-52918

Produtos afetados

Linux

Referências · 9

• https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-52918 · Nota de Segurança
• https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a · Nota
• https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3 · Nota
• https://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c · Nota
• https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1 · Nota
• https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336 · Nota
• https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c · Nota
• https://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88 · Nota