CVE-2023-53297

MEDIUM

Linux Kernel < 4.14.316 - Denial of Service via Bluetooth L2CAP Disconnect Response

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp conn->chan_lock isn't acquired before l2cap_get_chan_by_scid, if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance' is triggered.

References (8)

Core 8

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 3.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (34)
linux/Kernel < 4.14.316linux
linux/Kernel 4.15.0 - 4.19.284linux
linux/Kernel 4.20.0 - 5.4.244linux
linux/Kernel 5.11.0 - 5.15.113linux
linux/Kernel 5.16.0 - 6.1.30linux
linux/Kernel 5.5.0 - 5.10.181linux
linux/Kernel 6.2.0 - 6.3.4linux
Linux/Linux < 6.3
Linux/Linux 1351551aa9058e07a20a27a158270cf84fcde621 - 6a27762340ad08643de3bc17fe1646ea489ca2e2
Linux/Linux 348d446762e7c70778df8bafbdf3fa0df2123f58 - fd269a0435f8e9943b7a57c5a59688848d42d449
... and 24 more
Published Sep 16, 2025
Tracked Since Feb 18, 2026