diff options
| author | Lai Jiangshan <laijs@linux.alibaba.com> | 2020-05-29 23:27:30 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:15:20 +0200 |
| commit | 97417cb9ad4ed052d7a4c5c0d75db1ff1b0981fb (patch) | |
| tree | 7c6acb233789431d272714c5ad438215ba7a52b0 /arch/x86/platform | |
| parent | x86/hw_breakpoint: Add within_area() to check data breakpoints (diff) | |
| download | linux-97417cb9ad4ed052d7a4c5c0d75db1ff1b0981fb.tar.xz linux-97417cb9ad4ed052d7a4c5c0d75db1ff1b0981fb.zip | |
x86/hw_breakpoint: Prevent data breakpoints on direct GDT
A data breakpoint on the GDT can be fatal and must be avoided. The GDT in
the CPU entry area is already protected, but not the direct GDT.
Add the necessary protection.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200526014221.2119-3-laijs@linux.alibaba.com
Link: https://lkml.kernel.org/r/20200529213320.840953950@infradead.org
Diffstat (limited to 'arch/x86/platform')
0 files changed, 0 insertions, 0 deletions