PT-2025-40702 · Linux+1 · Linux Kernel+1

Published 2023-07-12 · Updated 2025-12-04 · CVE-2023-53560

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.5.0-rc1

Description The Linux kernel tracing subsystem contained a flaw in how histograms were handled with referenced variables. Specifically, hist triggers could have referenced variables without having direct variables fields. This could lead to a use-after-free condition when removing a hist trigger with referenced variables, resulting in a kernel crash. The issue was triggered by creating a synthetic event and a hist trigger referencing it, then attempting to remove the trigger.

Recommendations Update to a version newer than 6.5.0-rc1.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2026-04415

CVE-2023-53560

OESA-2025-2533

SUSE-SU-2025:21040-1

SUSE-SU-2025:21052-1

SUSE-SU-2025:21056-1

SUSE-SU-2025:21064-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4111-1

SUSE-SU-2025:4128-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4140-1

SUSE-SU-2025:4141-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4301-1

SUSE-SU-2025:4320-1

Affected Products

Linux Kernel

Suse

References · 1343

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53560.json · Exploit
• https://git.kernel.org/stable/c/5fd32eb6fa0ac795aa5a64bc004ab68d7b44196a · Patch
• https://git.kernel.org/stable/c/4a540f63618e525e433b37d2b5522cda08e321d7 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53560 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53560 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38449 · Security Note
• https://ubuntu.com/security/CVE-2023-53560 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53322 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4111-1 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2533 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4301-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53560 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50430 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50449 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4128-1 · Vendor Advisory