CVE-2025-38565 Affecting kernel-azure package, versions <6.4.0-150600.8.52.1


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (15th percentile)

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  • Snyk IDSNYK-SLES156-KERNELAZURE-13619720
  • published18 Oct 2025
  • disclosed17 Oct 2025

Introduced: 17 Oct 2025

NewCVE-2025-38565  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-azure to version 6.4.0-150600.8.52.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-azure package and not the kernel-azure package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1