From: Michael Ellerman <mpe@ellerman.id.au>
To: Khem Raj <raj.khem@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: Khem Raj <raj.khem@gmail.com>, Kees Cook <keescook@chromium.org>
Subject: Re: [V2] powerpc/ptrace: Fix out of bounds array access warning
Date: Tue, 7 Jun 2016 13:35:49 +1000 (AEST) [thread overview]
Message-ID: <3rNxzn27hwz9t3x@ozlabs.org> (raw)
In-Reply-To: <1461601157-27478-1-git-send-email-raj.khem@gmail.com>
On Mon, 2016-25-04 at 16:19:17 UTC, Khem Raj wrote:
> gcc-6 correctly warns about a out of bounds access
>
> arch/powerpc/kernel/ptrace.c:407:24: warning: index 32 denotes an offset greater than size of 'u64[32][1] {aka long long unsigned int[32][1]}' [-Warray-bounds]
> offsetof(struct thread_fp_state, fpr[32][0]));
> ^
>
> check the end of array instead of beginning of next element to fix this
>
> Signed-off-by: Khem Raj <raj.khem@gmail.com>
> Cc: Kees Cook <keescook@chromium.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Segher Boessenkool <segher@kernel.crashing.org>
> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
> Acked-by: Olof Johansson <olof@lixom.net>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/1e407ee3b21f981140491d5b8a
cheers
prev parent reply other threads:[~2016-06-07 3:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-25 16:19 [PATCH V2] powerpc/ptrace: Fix out of bounds array access warning Khem Raj
2016-05-11 17:51 ` Aaro Koskinen
2016-06-05 22:04 ` Olof Johansson
2016-06-07 3:35 ` Michael Ellerman [this message]
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