CVE-2023-53017: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix memory leak in hci_update_adv_data() When hci_cmd_sync_queue() failed in hci_update_adv_data(), inst_ptr is not freed, which will cause memory leak, convert to use ERR_PTR/PTR_ERR to pass the instance to callback so no memory needs to be allocated.

Affected products

• Linux Linux Kernel: from 6.0, before 6.1.9 (fixed in 6.1.9); version 6.2 only

Published 2025-03-27. Last modified 2026-06-17.