linux: In the Linux kernel, the following vulnerability has been resolved: KVM: x86: wean fast IN from emulator_pio_in Use...
CVE-2022-4994 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-4994, released July 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.0.2-1 | DEBIAN-CVE-2022-4994 | Jul 31, 2026 |
| linux · Debian 13.5 (trixie) | 6.0.2-1 | DEBIAN-CVE-2022-4994 | Jul 31, 2026 |
| linux · Debian 14 | 6.0.2-1 | DEBIAN-CVE-2022-4994 | Jul 31, 2026 |
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