CVE-2026-80887 Affecting perf package, versions <0:5.14.0-687.57.1.el9_8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.17% (6th percentile)

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  • Snyk IDSNYK-ROCKY9-PERF-20952144
  • published15 Oct 2026
  • disclosed4 Sept 2026

Introduced: 4 Sep 2026

CVE-2026-80887  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 perf to version 0:5.14.0-687.57.1.el9_8 or higher.
This issue was patched in RLSA-2026:81552.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: use check_add_overflow for shader size+offset bound

vmw_shader_define() validates the user-supplied shader window against its backing buffer with

(u64)buffer-&gt;tbo.base.size &lt; (u64)size + (u64)offset

drm_vmw_shader_create_arg::offset is __u64 in the uapi; when it is near U64_MAX the unsigned addition wraps and the resulting tiny value passes the check. The unbounded offset is then stored in res->guest_memory_offset and forwarded to host SVGA shader-create commands.

Use check_add_overflow() to detect the wrap and compare the resulting endpoint against the buffer size.

CVSS Base Scores

version 3.1