CVE-2026-74528

A flaw was found in the Linux kernel's Bluetooth subsystem. This vulnerability, a use-after-free, occurs when the hcisync component improperly handles connection references, leading to the potential reuse and access of freed memory pointers. A remote attacker could exploit this to cause system...

CVE-2026-74533

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix race of kfree vs krefgetunlesszero hciconn::isodata is accessed and modified without lock or RCU. This leads to a race Task hdev-workqueue Task 2 isorecv isoconnputconn conn = LOAD hcon-isodata isoconnfreeconn...

Linux Distros Unpatched Vulnerability : CVE-2026-74538

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: ISO: lock sk in isoconnectind Accessing isopisk-conn requires locksock, which is not taken in the ev3 part of isoconnectind. It may also be NULL if...

CVE-2026-68339

A flaw was found in the Linux kernel's Bluetooth subsystem btusb driver. An attacker could craft a two-byte vendor event that, due to improper validation of the Realtek vendor event length in the btusbrecveventrealtek function, could lead to the system attempting to read a non-existent third byte...

CVE-2026-68392

A flaw was found in the Linux kernel's Bluetooth management subsystem. This vulnerability occurs due to incorrect locking when handling memory pointers during device unpairing and disconnection. An attacker could exploit this to trigger a Use-After-Free UAF condition, which is a type of memory...

Linux Distros Unpatched Vulnerability : CVE-2026-68392

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: mgmt: fix locking in unpairdevice/disconnectsync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take...

CVE-2026-68189

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Protect UUID list traversal The hcisync conversion moved class-of-device and EIR generation from an HCI request built under hdev-lock to asynchronous command sync work. The worker holds hdev-reqlock, but that...

Linux Distros Unpatched Vulnerability : CVE-2026-68391

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: mgmt: hold reference for hciconn in mgmtpendingcmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Us...

CVE-2026-64471

A flaw was found in the Linux kernel's Bluetooth subsystem btusb. When a Bluetooth controller fails to register, the system may not properly release associated interfaces. This can lead to a use-after-free or double-free memory error when these interfaces are later disconnected, potentially causi...

CVE-2026-64404

A flaw was found in the Linux kernel's Bluetooth subsystem. A race condition exists in the isoconnbigsync function where a socket lock is temporarily released and re-acquired. During this window, the Bluetooth connection can be unexpectedly terminated. If the connection is torn down, the subseque...

USN-8547-2: Linux kernel (Azure FIPS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - RISC-V architecture; - Cryptographic API; - InfiniBand drivers; - IOMMU subsystem; - Network drivers; -...

USN-8547-2 linux-azure-fips vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - RISC-V architecture; - Cryptographic API; - InfiniBand drivers; - IOMMU subsystem; - Network drivers; -...

CVE-2026-64406

A flaw was found in the Linux kernel's Bluetooth subsystem. This use-after-free UAF vulnerability in the btacceptdequeue function occurs because a temporary reference is prematurely dropped, leading to sockhold accessing freed memory. An attacker could potentially exploit this to cause a denial o...

The vulnerability of the hci_sockbind() function in the net/bluetooth/hci_sock.c module of the Linux kernel’s Bluetooth subsystem allows a attacker to escalate their privileges or cause service failures.

The vulnerability of the hcisockbind function in the net/bluetooth/hcisock.c module of the Linux kernel’s Bluetooth subsystem is related to the reutilization of previously freed memory. Exploiting this vulnerability can allow an attacker to gain increased privileges or cause service failures...

The vulnerability of the mgmt_index_removed() function in the net/bluetooth/mgmt.c module of the Linux kernel’s Bluetooth subsystem allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the mgmtindexremoved function in the net/bluetooth/mgmt.c module of the Bluetooth subsystem of the Linux kernel is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...

CVE-2026-64471

The CVE-2026-64471 entry concerns the Linux kernel Bluetooth subsystem (btusb). A use-after-free on registration failure has been fixed by ensuring sibling interfaces are released when controller registration fails, to avoid use-after-free and double-free during disconnects. The patch notes attri...

kernel: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

A flaw was found in the Linux kernel’s Bluetooth subsystem HCI. Specifically, in the function hciaclcreateconnsync and related path hcilecreateconnsync, a connection object in state BTOPEN that is still pending command submission may be freed prematurely, leading to a use-after-free condition. An...

USN-8594-1 linux-oem-6.17 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Foo-over-UDP FOU; - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Drivers core; - Null block...

Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-8547-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8547-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

USN-8547-1 linux-gcp-5.15, linux-intel-iotg-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - RISC-V architecture; - Cryptographic API; - InfiniBand drivers; - IOMMU subsystem; - Network drivers; -...