CVE-2026-31771 Bluetooth: hci_event: move wake reason storage into validated event handlers

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: move wake reason storage into validated event handlers hcistorewakereason is called from hcieventpacket immediately after stripping the HCI event header but before hcieventfunc enforces the per-event minimum...

PT-2026-36435

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the Bluetooth component. In the hci le remote conn param req evt function, the hci conn lookup and field access are not properly protected by the hde...

PT-2026-30155

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's Bluetooth L2CAP implementation, specifically within the l2cap unregister user function. A race condition occurs because l2cap register user and l2cap...

SUSE CVE-2023-54164

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix isoconn related locking and validity issues sk-skstate indicates whether isopisk-conn is valid. Operations that check/update skstate and access conn should hold locksock, otherwise they can race. The order of...

CVE-2023-54164

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix isoconn related locking and validity issues sk-skstate indicates whether isopisk-conn is valid. Operations that check/update skstate and access conn should hold locksock, otherwise they can race. The order of...

EUVD-2025-203775

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisock: Prevent race in socket write iter and sock bind There is a potential race condition between sock bind and socket write iter. bind may free the same cmd via mgmtpending before write iter sends the cmd, just as...

UBUNTU-CVE-2025-68305

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisock: Prevent race in socket write iter and sock bind There is a potential race condition between sock bind and socket write iter. bind may free the same cmd via mgmtpending before write iter sends the cmd, just as...

SUSE CVE-2021-47038

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: avoid deadlock between hcidev-lock and socket lock Commit eab2404ba798 "Bluetooth: Add BTPHY socket option" added a dependency between socket lock and hcidev-lock that could lead to deadlock. It turns out that...

DEBIAN-CVE-2021-47038

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: avoid deadlock between hcidev-lock and socket lock Commit eab2404ba798 "Bluetooth: Add BTPHY socket option" added a dependency between socket lock and hcidev-lock that could lead to deadlock. It turns out that...

Linux kernel security vulnerabilities

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 the Linux kernel that stems from a dependency between hcidev-lock and socket lock, which could lead to a deadlock...