CVE-2023-54214

Linux Kernel - Use-After-Free in Bluetooth L2CAP

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.

Scores

EPSS 0.0018
EPSS Percentile 8.2%

Details

Status published
Products (25)
linux/Kernel 3.5.0 - 4.14.308linux
linux/Kernel 4.15.0 - 4.19.276linux
linux/Kernel 4.20.0 - 5.4.235linux
linux/Kernel 5.11.0 - 5.15.99linux
linux/Kernel 5.16.0 - 6.1.16linux
linux/Kernel 5.5.0 - 5.10.173linux
linux/Kernel 6.2.0 - 6.2.3linux
Linux/Linux < 3.5
Linux/Linux 3.5
Linux/Linux 4.14.308 - 4.14.*
... and 15 more
Published Dec 30, 2025
Tracked Since Feb 18, 2026