CVE-2023-53297

Published: Sep 16, 2025Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

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.

Affected (7)

Products: Linux: Linux Kernel

1 product

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 4.14.316
Linux Linux Kernel	From 4.15 to 4.19.284
Linux Linux Kernel	From 4.20 to 5.4.244
Linux Linux Kernel	From 5.11 to 5.15.113
Linux Linux Kernel	From 5.16 to 6.1.30
Linux Linux Kernel	From 5.5 to 5.10.181
Linux Linux Kernel	From 6.2 to 6.3.4

References (8)

https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/fd269a0435f8e9943b7a57c5a59688848d42d449

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

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