PT-2025-54043 · Linux+1 · Linux Kernel+1

Published 2025-12-30 · Updated 2026-02-24 · CVE-2023-54214

Positive Technologies (AI Summary)

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 that could lead to a user-after-free condition. This issue arises from scenarios where a buffer is allocated using alloc skb, potentially releasing and reacquiring a channel lock. If the channel is disconnected during this process, a user-after-free condition may occur.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2023-54214

RHSA-2024:2394

SUSE-SU-2026:0263-1

SUSE-SU-2026:0316-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

Red Hat

References · 1111

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54214.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-54214 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54214 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54214 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54214 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54214 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54214 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54214 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54214 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0316-1 · Vendor Advisory
• https://suse.com/support/update/announcement/2026/suse-su-20260316-1 · Note