CVE-2025-38565

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

19/08/2025

Last modified:

08/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved: perf/core: Exit early on perf_mmap() fail When perf_mmap() fails to allocate a buffer, it still invokes the event_mapped() callback of the related event. On X86 this might increase the perf_rdpmc_allowed reference counter. But nothing undoes this as perf_mmap_close() is never called in this case, which causes another reference count leak. Return early on failure to prevent that.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.0 (including)	5.4.297 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.241 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.190 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.148 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.102 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.42 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.15.10 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.16 (including)	6.16.1 (excluding)
cpe:2.3:o:debian:debian_linux:11.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-38565

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools