PT-2026-66444 · Linux · Linux
CVE-2022-4994
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Published
2026-07-30
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Updated
2026-07-30
None
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In the Linux kernel, the following vulnerability has been resolved:
KVM: x86: wean fast IN from emulator pio in
Use emulator pio in() directly for fast PIO instead of bouncing through
emulator pio in() now that emulator pio in() fills "val" when handling
in-kernel PIO. vcpu->arch.pio.count is guaranteed to be '0', so this a
pure nop.
emulator pio in emulated is now the last caller of emulator pio in.
No functional change intended.
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Related Identifiers
Affected Products
Linux