CVE-2026-53071

CVE-2026-53071 concerns the Linux kernel Bluetooth L2CAP implementation. The flaw arises when l2cap_ecred_reconf_rsp() deletes a channel without holding l2cap_chan_lock(), unlike other callers which acquire the lock first. This can allow a remote BLE device to corrupt the channel list while anoth...

EUVD-2026-31856

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...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a lack of null pointer checking in the l2capsockstatechangecb function within the Bluetooth L2CAP...

CVE-2026-23395

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix accepting multiple L2CAPECREDCONNREQ Currently the code attempts to accept requests regardless of the command identifier which may cause multiple requests to be marked as pending FLAGDEFERSETUP which can cau...

SUSE-SU-2025:3684-1 Security update for the Linux Kernel (Live Patch 72 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122272 fixes one issue. The following security issue was fixed: - CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free bsc1250302...

CVE-2023-53305 Bluetooth: L2CAP: Fix use-after-free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2caplecommandrej...

UBUNTU-CVE-2025-21969

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the released l2capconn when sending to the upper layer. Add hci dev lock to...

kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c

An information leak vulnerability was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capparseconfreq function. An attacker with physical access within the range of standard Bluetooth transmission could use thi...

CVE-2023-28116 Buffer overflow in L2CAP due to misconfigured MTU

Contiki-NG is an open-source, cross-platform operating system for internet of things IoT devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer packetbuf for processing o...

PT-2022-36245 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.78 Description: A use-after-free issue was identified in the L2CAP Logical Link Control and Adaptation Protocol component of the Bluetooth protocol. This issue was introduced in version v3.6 and was fixed ...

UBUNTU-CVE-2022-45934

An issue was discovered in the Linux kernel through 6.0.10. l2capconfigreq in net/bluetooth/l2capcore.c has an integer wraparound via L2CAPCONFREQ packets...

Ubuntu 10.04 LTS : linux vulnerabilities (USN-1876-1)

Andrew Honig reported a flaw in the way KVM Kernel-based Virtual Machine emulated the IOAPIC. A privileged guest user could exploit this flaw to read host memory or cause a denial of service crash the host. CVE-2013-1798 An information leak was discovered in the Linux kernel's rcvmsg path for ATM...