Linux Distros Unpatched Vulnerability : CVE-2026-31510

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: L2CAP: Fix null-ptr-deref on l2capsockreadycb Before using sk pointer, check if it is null. Fix the following: KASAN: null-ptr-deref in range...

Linux Distros Unpatched Vulnerability : CVE-2026-31499

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: L2CAP: Fix deadlock in l2capconndel l2capconndel calls canceldelayedworksync for both infotimer and idaddrtimer while holding conn-lock. However, the...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013653)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013653 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013245)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013245 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013193)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013193 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2capdisconnectreq,rsp Similar to commit d0be8347c623...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007293)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007293 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: fix null-ptr-deref in l2capchantimeout There is a race condition between...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007343)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007343 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2capsockcreate btsockalloc...

PT-2026-51965

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Bluetooth Logical Link Control and Adaptation Protocol L2CAP implementation. A remote Bluetooth Low Energy BLE device can trigger the issue by sending a specially...

SUSE CVE-2026-23461

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2capunregisteruser After commit ab4eedb790ca "Bluetooth: L2CAP: Fix corrupted list in hcichandel", l2capconndel uses conn-lock to protect access to conn-users. However, l2capregisteruser a...

SUSE CVE-2026-31393

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Validate L2CAPINFORSP payload length before access l2capinformationrsp checks that cmdlen covers the fixed l2capinforsp header type + result, 4 bytes but then reads rsp-data without verifying that the payload is...

CVE-2026-23461

A flaw was found in the Linux kernel's Bluetooth L2CAP component. A race condition exists due to inconsistent locking mechanisms when registering and unregistering L2CAP users. This allows concurrent access to shared data structures, leading to use-after-free vulnerabilities and list corruption...

EUVD-2026-18724

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: Fix possible UAF This fixes the following trace caused by not dropping l2capconn reference when user-remove callback is called: 97.809249 l2capconnfree: freeing conn ffff88810a171c00 97.809907 CPU: 1 UID: 0 PID:...

EUVD-2026-18722

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2capunregisteruser After commit ab4eedb790ca "Bluetooth: L2CAP: Fix corrupted list in hcichandel", l2capconndel uses conn-lock to protect access to conn-users. However, l2capregisteruser a...

CVE-2026-31393

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Validate L2CAPINFORSP payload length before access l2capinformationrsp checks that cmdlen covers the fixed l2capinforsp header type + result, 4 bytes but then reads rsp-data without verifying that the payload is...

CVE-2026-23461

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2capunregisteruser After commit ab4eedb790ca "Bluetooth: L2CAP: Fix corrupted list in hcichandel", l2capconndel uses conn-lock to protect access to conn-users. However, l2capregisteruser a...

CVE-2026-23462

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: Fix possible UAF This fixes the following trace caused by not dropping l2capconn reference when user-remove callback is called: 97.809249 l2capconnfree: freeing conn ffff88810a171c00 97.809907 CPU: 1 UID: 0 PID:...

UBUNTU-CVE-2026-23462

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: Fix possible UAF This fixes the following trace caused by not dropping l2capconn reference when user-remove callback is called: 97.809249 l2capconnfree: freeing conn ffff88810a171c00 97.809907 CPU: 1 UID: 0 PID:...

CVE-2026-31393 Bluetooth: L2CAP: Validate L2CAP_INFO_RSP payload length before access

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Validate L2CAPINFORSP payload length before access l2capinformationrsp checks that cmdlen covers the fixed l2capinforsp header type + result, 4 bytes but then reads rsp-data without verifying that the payload is...

CVE-2026-23461

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2capunregisteruser After commit ab4eedb790ca "Bluetooth: L2CAP: Fix corrupted list in hcichandel", l2capconndel uses conn-lock to protect access to conn-users. However, l2capregisteruser a...

CVE-2026-23461

CVE-2026-23461: In the Linux kernel Bluetooth L2CAP, l2cap_register_user() and l2cap_unregister_user() did not consistently acquire conn->lock, creating a race with l2cap_conn_del() that can access conn->users and conn->hchan concurrently. This caused use-after-free and list corruption. ...