Re: Linux kernel: powerpc: RTAS calls can be used to compromise kernel integrity

2020-12-10 Thread Andrew Donnellan
On 24/11/20 1:41 am, Andrew Donnellan wrote: On 9/10/20 12:20 pm, Andrew Donnellan wrote: The Linux kernel for powerpc has an issue with the Run-Time Abstraction Services (RTAS) interface, allowing root (or CAP_SYS_ADMIN users) in a VM to overwrite some parts of memory, including kernel memory

Re: Linux kernel: powerpc: RTAS calls can be used to compromise kernel integrity

2020-11-23 Thread Andrew Donnellan
On 9/10/20 12:20 pm, Andrew Donnellan wrote: The Linux kernel for powerpc has an issue with the Run-Time Abstraction Services (RTAS) interface, allowing root (or CAP_SYS_ADMIN users) in a VM to overwrite some parts of memory, including kernel memory. This issue impacts guests running on top of

Linux kernel: powerpc: RTAS calls can be used to compromise kernel integrity

2020-10-08 Thread Andrew Donnellan
The Linux kernel for powerpc has an issue with the Run-Time Abstraction Services (RTAS) interface, allowing root (or CAP_SYS_ADMIN users) in a VM to overwrite some parts of memory, including kernel memory. This issue impacts guests running on top of PowerVM or KVM hypervisors (pseries platform