Linux Distros Unpatched Vulnerability : CVE-2026-90256

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: L2CAP: use protolock for l2capdata to fix l2capdisconnind hciconn::l2capdata is accessed without locks in l2capdisconnind via hciconntimeout discwork...

AZL-101909 CVE-2026-90256 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use protolock for l2capdata to fix l2capdisconnind hciconn::l2capdata is accessed without locks in l2capdisconnind via hciconntimeout discwork - hciprotodisconnind - l2capdisconnind. This is UAF if the l2capconn...

CVE-2026-90256 Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use protolock for l2capdata to fix l2capdisconnind hciconn::l2capdata is accessed without locks in l2capdisconnind via hciconntimeout discwork - hciprotodisconnind - l2capdisconnind. This is UAF if the l2capconn...

EUVD-2026-81849

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use protolock for l2capdata to fix l2capdisconnind hciconn::l2capdata is accessed without locks in l2capdisconnind via hciconntimeout discwork - hciprotodisconnind - l2capdisconnind. This is UAF if the l2capconn...

Linux kernel security vulnerabilities

A security vulnerability exists in the Linux kernel. It stems from unlocked access to hciconn::l2capdata under the l2capdisconnind path in the L2CAP protocol. This may lead to use-after-free conditions when l2capconn is deleted concurrently...