[PATCH] arm64: fix compat syscall return truncation

[Will Deacon]

On Mon, 2 Aug 2021 11:42:00 +0100, Mark Rutland wrote:
> Due to inconsistencies in the way we manipulate compat GPRs, we have a
> few issues today:
> 
> * For audit and tracing, where error codes are handled as a (native)
>   long, negative error codes are expected to be sign-extended to the
>   native 64-bits, or they may fail to be matched correctly. Thus a
>   syscall which fails with an error may erroneously be identified as
>   failing.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: fix compat syscall return truncation
      https://git.kernel.org/arm64/c/e30e8d46cf60

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
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