[PATCH v4 00/10] x86/alternative: text_poke() fixes

2018-11-10 Thread Nadav Amit
This patch-set addresses some issues that might affect the security and the correctness of code patching. The main issue that the patches deal with is the fact that the fixmap PTEs that are used for patching are available for access from other cores and might be exploited. They are not even

[PATCH v4 00/10] x86/alternative: text_poke() fixes

2018-11-10 Thread Nadav Amit
This patch-set addresses some issues that might affect the security and the correctness of code patching. The main issue that the patches deal with is the fact that the fixmap PTEs that are used for patching are available for access from other cores and might be exploited. They are not even