The vulnerability of the discovery_init() function in the include/net/bluetooth/hci_core.h file of the Linux kernel allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the discoveryinit function in the include/net/bluetooth/hcicore.h file of the Linux kernel is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected information...

2026-03 Cumulative security Hotpatch for Azure Stack HCI, version 21H2 and Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5078737)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005561)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005561 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Add error handling to pairdevice hciconnparamsadd never checks for a NULL value...

kernel: Linux kernel Bluetooth: Denial of Service due to use-after-free in connection handling

A flaw was found in the Linux kernel's Bluetooth subsystem. A use-after-free UAF vulnerability exists in the hcidisconnectallsync function. This can occur if a Bluetooth connection is deleted while a controller event is being processed concurrently. A local attacker could potentially exploit this...

kernel: Linux kernel Bluetooth: Denial of Service due to use-after-free in connection handling

A flaw was found in the Linux kernel's Bluetooth subsystem. A use-after-free UAF vulnerability exists in the hcidisconnectallsync function. This can occur if a Bluetooth connection is deleted while a controller event is being processed concurrently. A local attacker could potentially exploit this...

Linux Distros Unpatched Vulnerability : CVE-2026-23146

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to...

CVE-2026-23146

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

CVE-2026-23146

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

EUVD-2026-5891

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

CVE-2026-23146

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

CVE-2026-23146 Bluetooth: hci_uart: fix null-ptr-deref in hci_uart_write_work

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

CVE-2026-23146

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

CLSA-2026-1771081379 kernel: Fix of 76 CVEs

HID: core: ensure the allocated report buffer can contain the reserved report ID CVE-2025-38495 - fs/proc: fix uaf in procreaddirde CVE-2025-40271 - ALSA: usb-audio: Fix potential overflow of PCM transfer buffer CVE-2025-40269 - Bluetooth: ISO: Fix possible UAF on isoconnfree CVE-2025-40141 -...

2026-02 Cumulative security Hotpatch for Azure Stack HCI, version 21H2 and Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5075943)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information...

Oracle Linux 9 : kernel (ELSA-2026-2212)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-2212 advisory. - iouring/net: commit partial buffers on retry Jeff Moyer RHEL-137329 CVE-2025-38730 - atm: clip: Fix infinite recursive call of clippush. Guillaume...

Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: openvswitch: fix nested key length validation in the set action CVE-2025-37789 kernel: Linux kernel: irqchip/gic-v2m use-after-free vulnerability CVE-2025-37819 kernel: RDMA/core: Fi...

The vulnerability of the hci_conn_del() function in the net/bluetooth/hci_conn.c module of the Linux kernel’s Bluetooth subsystem allows a attacker to cause a service failure.

The vulnerability of the hciconndel function in the net/bluetooth/hciconn.c module of the Bluetooth subsystem in the Linux operating system is related to improper control of resource identifiers “resource injection”. Exploiting this vulnerability could allow a attacker to cause service failures...

RLSA-2026:1143 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-after-free in device mapper due to race condition in zone reporting CVE-2025-38141 kernel: Linux kernel use-after-free in eventpoll CVE-2025-38349 kernel: drm/xe: Fix...

The vulnerability of the hci_connCompleteEvt() function in the net/bluetooth/hci_event.c module of the Linux operating system allows a intruder to trigger a service failure.

The vulnerability of the hciconnCompleteEvt function in the net/bluetooth/hcievent.c module of the Linux kernel is related to the occurrence of operations outside the buffer in memory. Exploiting this vulnerability could allow a malicious actor to cause service failures remotely...

AlmaLinux 10 : kernel (ALSA-2026:1690)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:1690 advisory. kernel: Linux kernel: irqchip/gic-v2m use-after-free vulnerability CVE-2025-37819 kernel: RDMA/core: Fix KASAN: slab-use-after-free Read in...