CVE-2026-90255 Bluetooth: hci_conn: fix the SCO setup context lifetime

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: fix the SCO setup context lifetime hcisetupsync queues a connhandlet with a NULL destroy callback, so the context is only freed if hcienhancedsetupsync actually runs. An entry that is cancelled instead is...

CVE-2026-90254 Bluetooth: hci_sync: free the advertising instance on the failure and cancel paths

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: free the advertising instance on the failure and cancel paths advtimeoutexpire hands a kmalloced instance byte to hcicmdsyncqueue with a NULL destroy callback, and only advtimeoutexpiresync frees it. That leak...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: KVM: Do not dereference ops-destroy directly. The cleanup of a KVM device occurs through either of two callbacks: 1 destroy, called when the VM is being destroyed; 2 release, called when a device file descriptor is closed. Most K...

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 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

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-2026-43021 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...

PT-2026-36438

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak occurs in the Bluetooth component when the hci cmd sync queue once function returns an error. In such cases, the destroy callback is not triggered, leading to leaking...

DEBIAN-CVE-2022-49568

In the Linux kernel, the following vulnerability has been resolved: KVM: Don't null dereference ops-destroy A KVM device cleanup happens in either of two callbacks: 1 destroy which is called when the VM is being destroyed; 2 release which is called when a device fd is closed. Most KVM devices use...

CVE-2022-49568 KVM: Don't null dereference ops->destroy

In the Linux kernel, the following vulnerability has been resolved: KVM: Don't null dereference ops-destroy A KVM device cleanup happens in either of two callbacks: 1 destroy which is called when the VM is being destroyed; 2 release which is called when a device fd is closed. Most KVM devices use...

CVE-2022-49568

CVE-2022-49568 affects the Linux kernel KVM code path, where a NULL dereference can occur during cleanup if destroy() is assumed non-NULL but is not (notably for some Book3s KVM devices that use release() instead). The root cause is an assumption in kvm_ioctl_create_device() that destroy() is alw...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from an unchecked destroy callback that could lead to a null pointer dereference...

CLSA-2021-1632262269 Fix of CVE: CVE-2021-34693, CVE-2021-20292, CVE-2021-28972, CVE-2021-20265, CVE-2021-32399, CVE-2014-4508, CVE-2021-3612, CVE-2021-3178, CVE-2021-37159, CVE-2021-38205, CVE-2021-3573, CVE-2021-38160

ELSCVE-666: CVE-2021-34693: can: bcm: fix infoleak in struct bcmmsghead - ELSCVE-705: CVE-2021-38160: virtioconsole: Assure used length from device is limited - ELSCVE-769: CVE-2014-4508: x8632, entry: Do syscall exit work on badsys CVE-2014-4508 - ELSCVE-844: CVE-2021-3573: Bluetooth: use...