CVE-2026-53276

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-31500 Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: serialize btintelhwerror with hcireqsynclock btintelhwerror issues two hcicmdsync calls HCIOPRESET and Intel exception-info retrieval without holding hcireqsynclock. This lets it race against hcidevdoclose -...

CVE-2023-54164

CVE-2023-54164 (Linux kernel Bluetooth ISO) fixes race conditions in ISO data paths by correcting locking around sk_state/conn access. The issue spanned updates to iso_connect_cis/bis, sendmsg/recvmsg, iso_sock_connect, iso_conn_del, and iso_conn_add, with improper lock_sock/iso_conn_lock orderin...

Linux Distros Unpatched Vulnerability : CVE-2025-21969

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the...

UBUNTU-CVE-2025-21969

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the released l2capconn when sending to the upper layer. Add hci dev lock to...