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. ]
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. ]
Metrics
Affected Vendors & Products
References
History
Thu, 28 Aug 2025 00:15:00 +0000
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threat_severity
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cvssV3_1
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Sun, 24 Aug 2025 22:30:00 +0000
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First Time appeared |
Linux
Linux linux Kernel |
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Vendors & Products |
Linux
Linux linux Kernel |
Sat, 16 Aug 2025 11:15:00 +0000
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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. ] | |
Title | x86/CPU/AMD: Disable INVLPGB on Zen2 | |
References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-08-16T10:55:05.039Z
Reserved: 2025-04-16T04:51:24.023Z
Link: CVE-2025-38518

No data.

Status : Awaiting Analysis
Published: 2025-08-16T11:15:45.020
Modified: 2025-08-18T20:16:28.750
Link: CVE-2025-38518


Updated: 2025-08-24T22:19:14Z