CVE-2018-14678: Improper Initialization

An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xenfailsafecallback entry point in arch/x86/entry/entry64.S does not properly maintain RBX, which allows local users to cause a denial of service uninitialized memory usage and system crash. Within Xen...

CVE-2015-3291: Undefined Security Weakness

arch/x86/entry/entry64.S in the Linux kernel before 4.1.6 on the x8664 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service skipped NMI by modifying the rsp register, issuing a syscall instruction, and triggering an NM...

CVE-2015-5157: Undefined Security Weakness

arch/x86/entry/entry64.S in the Linux kernel before 4.1.6 on the x8664 platform mishandles IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI...

CVE-2015-3290: Undefined Security Weakness

arch/x86/entry/entry64.S in the Linux kernel before 4.1.6 on the x8664 platform improperly relies on espfix64 during nested NMI processing, which allows local users to gain privileges by triggering an NMI within a certain instruction window...