Bug 2395681 (CVE-2023-53297)

Summary: CVE-2023-53297 kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-09-16 09:03:07 UTC
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.

Comment 6 errata-xmlrpc 2025-10-27 09:36:12 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:19103 https://access.redhat.com/errata/RHSA-2025:19103

Comment 7 errata-xmlrpc 2025-10-27 09:38:14 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:19102 https://access.redhat.com/errata/RHSA-2025:19102

Comment 9 errata-xmlrpc 2025-11-25 00:37:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:22006 https://access.redhat.com/errata/RHSA-2025:22006

Comment 10 errata-xmlrpc 2025-11-25 10:35:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:22066 https://access.redhat.com/errata/RHSA-2025:22066

Comment 11 errata-xmlrpc 2025-11-25 12:31:14 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2025:22072 https://access.redhat.com/errata/RHSA-2025:22072

Comment 12 errata-xmlrpc 2025-11-25 16:04:53 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:22087 https://access.redhat.com/errata/RHSA-2025:22087

Comment 13 errata-xmlrpc 2025-11-25 17:16:08 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:22095 https://access.redhat.com/errata/RHSA-2025:22095

Comment 14 errata-xmlrpc 2025-11-25 18:13:52 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:22124 https://access.redhat.com/errata/RHSA-2025:22124

Comment 17 errata-xmlrpc 2025-12-17 07:45:26 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:23445 https://access.redhat.com/errata/RHSA-2025:23445

Comment 18 errata-xmlrpc 2025-12-17 15:00:15 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2025:23463 https://access.redhat.com/errata/RHSA-2025:23463

Comment 19 errata-xmlrpc 2025-12-22 17:01:41 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:23960 https://access.redhat.com/errata/RHSA-2025:23960

Comment 20 errata-xmlrpc 2025-12-22 17:34:57 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:23947 https://access.redhat.com/errata/RHSA-2025:23947