CVE-2026-53358 Bluetooth: L2CAP: use chan timer to close channels in cleanup_listen()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use chan timer to close channels in cleanuplisten l2capchanclose removes the channel from conn-chanl, which must be done under conn-lock. cleanuplisten runs under the parent sklock, so acquiring conn-lock would...

PT-2026-55235

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Bluetooth L2CAP implementation where calling l2cap chan close within cleanup listen causes a lock inversion. Specifically, cleanup listen operates under the parent...

SUSE-SU-2026:22436-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2025-10263: arm64: errata: Mitigate TLBI errata on various Arm CPUs bsc1266290. - CVE-2025-68822: Input: alps - fix use-after-free bugs caused by...

SUSE-SU-2026:22460-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2025-10263: arm64: errata: Mitigate TLBI errata on various Arm CPUs bsc1266290. - CVE-2025-68822: Input: alps - fix use-after-free bugs caused by...

SUSE CVE-2026-53208

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2capcore.c:l2capsigchannel accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU MTUsig...

CVE-2026-53208

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2capcore.c:l2capsigchannel accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU MTUsig...

CVE-2026-53208

The CVE-2026-53208 entry concerns the Linux kernel Bluetooth subsystem: BR/EDR signaling packets are not enforcing MTUsig, allowing a remote BR/EDR peer within radio range (before pairing) to send a single 681-byte signaling packet containing multiple L2CAP_ECHO_REQ commands, which can trigger 16...

CVE-2026-53208 Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2capcore.c:l2capsigchannel accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU MTUsig...

PT-2026-52304

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Bluetooth L2CAP implementation where the l2cap sig channel function in net/bluetooth/l2cap core.c accepts BR/EDR signaling packets up to the channel MTU without...

Linux Distros Unpatched Vulnerability : CVE-2026-53071

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: l2cap: Add missing chan lock in l2capecredreconfrsp l2capecredreconfrsp calls l2capchandel without holding l2capchanlock. Every other l2capchandel...

Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues The following security issues were fixed: CVE-2025-10263: arm64: Add workaround for Cortex-A76 erratum 1286807 bsc1266290. CVE-2025-40253: s390/ctcm: Fix double-kfree bsc1255084. CVE-2025-68822: Input: alps - fix...

CVE-2026-5068

A remote, unauthenticated BLE peer can trigger a 2-byte out-of-bounds write in the Bluetooth host during L2CAP LE CoC SDU reassembly. When the application enables segmentation via chanops.allocbuf and the chosen RX pool has a userdatasize smaller than 2 bytes, the segmentation counter stored in t...

CVE-2026-45836

A flaw was found in the Linux kernel's Bluetooth L2CAP subsystem. This vulnerability, a null-pointer dereference, occurs due to a missing NULL guard in the l2capsockgetsndtimeocb function. A local attacker could exploit this flaw to trigger a system crash, leading to a Denial of Service DoS...

CVE-2026-45834

A flaw was found in the Linux kernel's Bluetooth L2CAP Logical Link Control and Adaptation Protocol implementation. A missing null pointer guard in the l2capsockstatechangecb function can lead to a null pointer dereference. This vulnerability could allow an attacker to cause a system crash,...

SUSE CVE-2026-45835

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2capsocknewconnectioncb Add the same NULL guard already present in l2capsockresumecb and l2capsockreadycb...

CVE-2026-45835

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2capsocknewconnectioncb Add the same NULL guard already present in l2capsockresumecb and l2capsockreadycb...

CVE-2026-45836

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2capsockgetsndtimeocb Add the same NULL guard already present in l2capsockresumecb and l2capsockreadycb...

UBUNTU-CVE-2026-45834

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2capsockstatechangecb Add the same NULL guard already present in l2capsockresumecb and l2capsockreadycb...

CVE-2026-45836

The CVE-2026-45836 vulnerability affects the Linux kernel Bluetooth L2CAP code and stems from a missing NULL guard in l2cap_sock_get_sndtimeo_cb(), which can cause a null pointer dereference. The issue is resolved by adding the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_s...

CVE-2026-45836

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2capsockgetsndtimeocb Add the same NULL guard already present in l2capsockresumecb and l2capsockreadycb...