An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3623-1 linux-5.10 security update
Debian DLA Debian DLA DLA-3710-1 linux security update
Debian DSA Debian DSA DSA-5480-1 linux security update
Debian DSA Debian DSA DSA-5492-1 linux security update
Ubuntu USN Ubuntu USN USN-6343-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6383-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6385-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6386-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6386-2 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-6386-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6387-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6387-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6388-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6396-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6396-2 Linux kernel (KVM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6396-3 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6466-1 Linux kernel (NVIDIA) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 20 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-18T15:06:00.041Z

Reserved: 2023-08-14T00:00:00.000Z

Link: CVE-2023-40283

cve-icon Vulnrichment

Updated: 2024-08-02T18:31:53.261Z

cve-icon NVD

Status : Modified

Published: 2023-08-14T03:15:09.257

Modified: 2026-06-17T06:17:02.530

Link: CVE-2023-40283

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-08-14T00:00:00Z

Links: CVE-2023-40283 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses