CVE-2025-38518

MEDIUM EPSS 2.1%
Published Aug 16, 202510mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 16, 2025 10mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Disable INVLPGB on Zen2 AMD Cyan Skillfish (Family 17h, Model 47h, Stepping 0h) has an issue that causes system oopses and panics when performing TLB flush using INVLPGB. However, the problem is that that machine has misconfigured CPUID and should not report the INVLPGB bit in the first place. So zap the kernel's representation of the flag so that nothing gets confused. [ bp: Massage. ]

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥6.15  –  <6.15.7
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/357f121517924e3ec3021f9d0dd0189adcd09867
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a74bb5f202dabddfea96abc1328fcedae8aa140a
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/357f121517924e3ec3021f9d0dd0189adcd09867
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a74bb5f202dabddfea96abc1328fcedae8aa140a
    Patch