linux-kernel - Re: [PATCH v1 1/4] mm: deduplicate error handling for map_deny_write

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Message-ID: <ZA8vAQ+KoHFRiZ7h@arm.com>
Date:   Mon, 13 Mar 2023 14:11:13 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Joey Gouly <joey.gouly@....com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, nd@....com,
        acme@...hat.com, izbyshev@...ras.ru, peterx@...hat.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Shuah Khan <shuah@...nel.org>,
        Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH v1 1/4] mm: deduplicate error handling for
 map_deny_write_exec

On Wed, Mar 08, 2023 at 07:04:20PM +0000, Joey Gouly wrote:
> Commit cc8d1b097de7 ("mmap: clean up mmap_region() unrolling") deduplicated
> the error handling, do the same for the return value of `map_deny_write_exec`.
> 
> Fixes: b507808ebce2 ("mm: implement memory-deny-write-execute as a prctl")
> Reported-by: Alexey Izbyshev <izbyshev@...ras.ru>
> Link: https://lore.kernel.org/linux-arm-kernel/8408d8901e9d7ee6b78db4c6cba04b78@ispras.ru/
> Signed-off-by: Joey Gouly <joey.gouly@....com>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>

Reviewed-by: Catalin Marinas <catalin.marinas@....com>