Andreas Kling c1f74bf327 Kernel: Never validate access to the kmalloc memory range ...

Memory validation is used to verify that user syscalls are allowed to
access a given memory range. Ring 0 threads never make syscalls, and
so will never end up in validation anyway.

The reason we were allowing kmalloc memory accesses is because kernel
thread stacks used to be allocated in kmalloc memory. Since that's no
longer the case, we can stop making exceptions for kmalloc in the
validation code.

2020-01-27 12:43:21 +01:00

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