CVE-2023-53827

Linux Kernel - Use-After-Free in L2CAP Disconnect Request/Response Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp} Similar to commit d0be8347c623 ("Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put"), just use l2cap_chan_hold_unless_zero to prevent referencing a channel that is about to be destroyed.

References (8)

Core 8

Scores

EPSS 0.0023
EPSS Percentile 13.9%

Details

Status published
Products (25)
linux/Kernel 3.5.0 - 4.14.313linux
linux/Kernel 4.15.0 - 4.19.281linux
linux/Kernel 4.20.0 - 5.4.241linux
linux/Kernel 5.11.0 - 5.15.108linux
linux/Kernel 5.16.0 - 6.1.25linux
linux/Kernel 5.5.0 - 5.10.178linux
linux/Kernel 6.2.0 - 6.2.12linux
Linux/Linux < 3.5
Linux/Linux 3.5
Linux/Linux 4.14.313 - 4.14.*
... and 15 more
Published Dec 09, 2025
Tracked Since Feb 18, 2026