In the Linux kernel, the following vulnerability has been resolved:
x86/kvm: Teardown PV features on boot CPU as well
Various PV features (Async PF, PV EOI, steal time) work through memory
shared with hypervisor and when we restore from hibernation we must
properly teardown all these features to make sure hypervisor doesn't
write to stale locations after we jump to the previously hibernated kernel
(which can try to place anything there). For secondary CPUs the job is
already done by kvm_cpu_down_prepare(), register syscore ops to do
the same for boot CPU.
References
Configurations
Configuration 1 (hide)
|
History
13 Mar 2025, 19:36
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
|
| CWE | NVD-CWE-noinfo | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/38b858da1c58ad46519a257764e059e663b59ff2 - Patch | |
| References | () https://git.kernel.org/stable/c/7620a669111b52f224d006dea9e1e688e2d62c54 - Patch | |
| References | () https://git.kernel.org/stable/c/8b79feffeca28c5459458fe78676b081e87c93a4 - Patch | |
| References | () https://git.kernel.org/stable/c/d1629b5b925de9b27979e929dae7fcb766daf6b6 - Patch |
Information
Published : 2024-03-15 21:15
Updated : 2025-03-13 19:36
NVD link : CVE-2021-47112
Mitre link : CVE-2021-47112
CVE.ORG link : CVE-2021-47112
JSON object : View
Products Affected
linux
- linux_kernel
CWE