CVE-2026-63975 Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix possible crash on l2capecredconnrsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2capchandel may invalidate the tmp cursor...

CVE-2026-63975

In the Linux kernel Bluetooth L2CAP stack, CVE-2026-63975 describes a crash when a dcid arrives for an already-assigned destination CID. The fix avoids invalidating a temporary cursor from list_for_each_entry_safe and instead defers closing the channel by scheduling l2cap_chan_timeout with a dela...

PT-2026-61292

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A crash can occur in the Bluetooth L2CAP layer during the processing of l2cap ecred conn rsp. When a destination CID dcid is received for a CID that has already been assigned, the...

SUSE SLES12: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:2914-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2914-1 advisory. The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-53995:...

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-2023-53995: net: ipv4: fix one memleak in inetdelifa bsc1255616. CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype bsc1259891. CVE-2026-23451: bonding:...

SUSE-SU-2026:2799-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-10263: arm64: cputype: Add C1-Ultra definitions bsc1266290. - CVE-2025-40216: iouring/rsrc: don't rely on user vaddr alignment bsc1259764. - CVE-2025-40341:...

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...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP – Fixed issue where multiple L2CAPECREDCONNREQUESTs were accepted. Currently, the code attempts to accept requests regardless of the command identifier. This can result in multiple requests being marked as pendin...

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-2026-45834

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,...