CVE-2026-53357

CVE-2026-53357 triggers a use-after-free in the Linux kernel Bluetooth stack (l2cap) when closing a listening socket: bt_accept_dequeue() temporarily holds the child, then cleanup_listen() may operate on a sk that has already been freed by l2cap_conn_del() during an HCI disconnect. The race occur...

CVE-2023-53673

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: call disconnect callback before deleting conn In hcicsdisconnect, we do hciconndel even if disconnection failed. ISO, L2CAP and SCO connections refer to the hciconn without hciconnget, so disconncfm must be...

CVE-2025-39860

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use-after-free in l2capsockcleanuplisten syzbot reported the splat below without a repro. In the splat, a single thread calling btacceptdequeue freed sk and touched it after that. The root cause would be the racy...

CVE-2025-39860

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use-after-free in l2capsockcleanuplisten syzbot reported the splat below without a repro. In the splat, a single thread calling btacceptdequeue freed sk and touched it after that. The root cause would be the racy...

Linux kernel 安全漏洞

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 post-release reuse issue in the l2capsockcleanuplisten function, which could lead to memory corruption...

PT-2025-38567

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free vulnerability exists in the Bluetooth stack, specifically within the l2cap sock cleanup listen function. The issue arises from a race condition where a socket can be fre...