PT-2025-53065 · Linux+1 · Linux Kernel+1

Published 2023-06-19 · Updated 2026-04-20 · CVE-2023-54067

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.4.0-rc6-btrfs-next-134+

Description The Linux kernel contained a flaw in the btrfs subsystem related to the handling of free space tree deletion. Specifically, the code lacked proper synchronization when removing a free space root from the dirty cow roots list, leading to a potential race condition. This unsynchronized list manipulation could occur during concurrent operations, such as adding a root to the list, potentially causing system failures.

Recommendations Update to Linux kernel version 6.4.0-rc6-btrfs-next-134+ or a later version to address this issue.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

CWE-119

Related Identifiers

BDU:2026-01243

CVE-2023-54067

SUSE-SU-2026:0278-1

SUSE-SU-2026:0281-1

SUSE-SU-2026:0293-1

SUSE-SU-2026:0315-1

SUSE-SU-2026:0473-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

Affected Products

Debian

Linux Kernel

References · 1614

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54067.json · Exploit
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-54067 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0315-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54067 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54067 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01243 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0473-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54067 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54067 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0278-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54067 · Vendor Advisory