CVE-2026-53364

ANALYSIS PENDING

Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate() hci_le_big_terminate() allocates iso_list_data via kzalloc_obj but returns 0 without freeing it when neither pa_sync_term nor big_sync_term flags are set after evaluating the PA and BIG sync connection state. This early-return path was introduced when hci_le_big_terminate() was refactored to take struct hci_conn instead of raw u8 parameters, adding PA/BIG flag evaluation logic. The existing kfree() on hci_cmd_sync_queue failure does not cover this path.

Details

Status published
Products (10)
Linux/Linux < 6.17
Linux/Linux 087812a6119b4cd5c9d658b48aee40a25707a1c6
Linux/Linux 6.16.4 - 6.17
Linux/Linux 6.17
Linux/Linux 6.18.35 - 6.18.*
Linux/Linux 7.0.12 - 7.0.*
Linux/Linux 7.1
Linux/Linux a7bcffc673de219af2698fbb90627016233de67b - a59d4f4217e6200ca9180643e5738a87d3fa8be0
Linux/Linux a7bcffc673de219af2698fbb90627016233de67b - bfa9d28960ed677d556bdf097073bc3129686229
Linux/Linux a7bcffc673de219af2698fbb90627016233de67b - e6b78019664dfe37c3dc707f50e7b453d6c7726d
Published Jul 13, 2026
Tracked Since Jul 13, 2026