PT-2025-37902 · Linux+7 · Linux Kernel+7
CVE-2023-53297
·
Published
2023-04-23
·
Updated
2026-06-30
CVSS v3.1
8.8
High
| Vector | AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel's Bluetooth L2CAP implementation related to an unlock balance issue within the
l2cap disconnect rsp function. Specifically, the conn->chan lock is not acquired before calling l2cap get chan by scid. If l2cap get chan by scid returns NULL, a 'bad unlock balance' condition is triggered.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
Improper Resource Release
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Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse