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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-38518

x86/CPU/AMD: Disable INVLPGB on Zen2

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Status
Published
Published
Updated
Assigning organization
Linux

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. ]

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 767ae437a32d644786c0779d0d54492ff9cbe574 to < 357f121517924e3ec3021f9d0dd0189adcd09867affected
  • 767ae437a32d644786c0779d0d54492ff9cbe574 to < a74bb5f202dabddfea96abc1328fcedae8aa140aaffected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 6.15.7 to ≤ 6.15.*unaffected
  • 6.16 to ≤ *unaffected

References