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    CVE-2023-53297

    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.

    Published:Sep 16, 2025
    Last Modified:Aug 4, 2026
    EPS:Sep 16, 2025
    EPSS Score:0.00137
    CVSS Score:8.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High