linux-kernel - Re: [PATCH] lib/crypto: blake2s: fix a CFI failure

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Message-ID: <20220119100615.5059-1-miles.chen@mediatek.com>
Date:   Wed, 19 Jan 2022 18:06:15 +0800
From:   Miles Chen <miles.chen@...iatek.com>
To:     <jason@...c4.com>
CC:     <ardb@...nel.org>, <davem@...emloft.net>,
        <gregkh@...uxfoundation.org>, <herbert@...dor.apana.org.au>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <matthias.bgg@...il.com>,
        <miles.chen@...iatek.com>, <nathan@...nel.org>,
        <ndesaulniers@...gle.com>
Subject: Re: [PATCH] lib/crypto: blake2s: fix a CFI failure

Hi,

>Hi Miles,
>
>I'm actually not able to reproduce your oops. I'm using vanilla clang
>13, cross compiling for arm64, with thin LTO enabled and CFI enabled.
>Kernel seems to run fine.
>
>
>Are there other settings that are needed to trigger this? Do you see
>it in upstream clang or just the Android fork of clang?
>
I will try another clang (the previous version I use).
I am using Android fork of clang and there is a clang upgrade in this merge.

Miles