An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.
| Software | From | Fixed in |
|---|---|---|
| xen / xen | - | 4.11.1.x |
| debian / debian_linux | 9.0 | 9.0.x |