On Tue, 26 Jan 2021 13:40:56 +0000, Vincenzo Frascino wrote:
> Currently, the __is_lm_address() check just masks out the top 12 bits
> of the address, but if they are 0, it still yields a true result.
> This has as a side effect that virt_addr_valid() returns true even for
> invalid virtual addresses (e.g. 0x0).
>
> Fix the detection checking that it's actually a kernel address starting
> at PAGE_OFFSET.
Applied to arm64 (for-next/fixes), thanks!
[1/1] arm64: Fix kernel address detection of __is_lm_address()
https://git.kernel.org/arm64/c/519ea6f1c82f
--
Catalin
