CVE-2022-4994
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8370c3d08bd98576d97514eca29970e03767a5d1 < dc7a4bfde507ffe1d8bef49aba1322f1d20c2cb3 | affected |
| Linux | Linux | 4.10 | affected |
| Linux | Linux | 0 < 4.10 | unaffected |
| Linux | Linux | 6.0 <= * | unaffected |
Weaknesses
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.