EUVD-2026-27371

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcill: Fix firmware leak on error path Smatch reports: drivers/bluetooth/hcill.c:587 downloadfirmware warn: 'fw' from requestfirmware not released on lines: 544. In downloadfirmware, if requestfirmware succeeds but the...

CVE-2026-43069

CVE-2026-43069 concerns the Linux kernel Bluetooth stack (hci_ll). The issue arises when download_firmware() succeeds in request_firmware() but returns invalid content (no data/zero size), causing a resource leak because firmware is not released. The fix introduced is to call release_firmware() b...

CVE-2026-43069 Bluetooth: hci_ll: Fix firmware leak on error path

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcill: Fix firmware leak on error path Smatch reports: drivers/bluetooth/hcill.c:587 downloadfirmware warn: 'fw' from requestfirmware not released on lines: 544. In downloadfirmware, if requestfirmware succeeds but the...

Linux Distros Unpatched Vulnerability : CVE-2026-43018

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt,...

Linux Distros Unpatched Vulnerability : CVE-2026-43019

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: hciconn: fix potential UAF in setcigparamssync hciconn lookup and field access must be covered by hdev lock in setcigparamssync, otherwise it's...

Linux Distros Unpatched Vulnerability : CVE-2026-43022

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: hcisync: hcicmdsyncqueueonce return -EEXIST if exists hcicmdsyncqueueonce needs to indicate whether a queue item was added, so caller can know if...

CVE-2026-43019

A flaw was found in the Linux kernel's Bluetooth component. Improper synchronization in the setcigparamssync function can lead to a use-after-free UAF vulnerability. This issue arises when hciconn objects are accessed without proper locking, allowing them to be freed concurrently. An attacker cou...

CVE-2026-43021

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix leaks when hcicmdsyncqueueonce fails When hcicmdsyncqueueonce returns with error, the destroy callback will not be called. Fix leaking references / memory on these failures...

CVE-2026-43022

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hcicmdsyncqueueonce return -EEXIST if exists hcicmdsyncqueueonce needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources. Change the...

CVE-2026-43018

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

CVE-2026-43022

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hcicmdsyncqueueonce return -EEXIST if exists hcicmdsyncqueueonce needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources. Change the...

CVE-2026-43022

The CVE-2026-43022 issue affects the Linux kernel Bluetooth HCI synchronization path: hci_cmd_sync_queue_once() did not indicate when a queue item already existed, risking resource leaks. The fix changes hci_cmd_sync_queue_once() to return -EEXIST when a queue item already exists and requires upd...

CVE-2026-43022 Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hcicmdsyncqueueonce return -EEXIST if exists hcicmdsyncqueueonce needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources. Change the...

EUVD-2026-26620

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix leaks when hcicmdsyncqueueonce fails When hcicmdsyncqueueonce returns with error, the destroy callback will not be called. Fix leaking references / memory on these failures...

CVE-2026-43021 Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix leaks when hcicmdsyncqueueonce fails When hcicmdsyncqueueonce returns with error, the destroy callback will not be called. Fix leaking references / memory on these failures...

CVE-2026-43021

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix leaks when hcicmdsyncqueueonce fails When hcicmdsyncqueueonce returns with error, the destroy callback will not be called. Fix leaking references / memory on these failures...

CVE-2026-43021

CVE-2026-43021 affects the Linux kernel Bluetooth hci_sync path. A failure in hci_cmd_sync_queue_once() can skip calling the destroy callback, causing leaks of references/memory. The issue manifests during error paths, potentially leaving resources allocated for the hci_sync queue. Public discuss...

CVE-2026-43021

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: fix leaks when hcicmdsyncqueueonce fails When hcicmdsyncqueueonce returns with error, the destroy callback will not be called. Fix leaking references / memory on these failures...

CVE-2026-43019 Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix potential UAF in setcigparamssync hciconn lookup and field access must be covered by hdev lock in setcigparamssync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hciconn from...

CVE-2026-43019

The CVE-2026-43019 issue affects the Linux kernel Bluetooth HCI path, where hci_conn lookups and field access in set_cig_params_sync were not properly protected by the hdev lock, allowing a use-after-free when an hci_conn could be freed concurrently. The documented fix is to take the hdev lock to...