linux-kernel - Re: [External] Re: [PATCH 0/3] Support intra-function call validation

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Date: Wed, 28 Feb 2024 10:50:55 +0800
From: Rui Qi <qirui.001@...edance.com>
To: Josh Poimboeuf <jpoimboe@...nel.org>
Cc: bp@...en8.de, mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
 jpoimboe@...hat.com, peterz@...radead.org, mbenes@...e.cz,
 gregkh@...uxfoundation.org, stable@...r.kernel.org,
 alexandre.chartre@...cle.com, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [External] Re: [PATCH 0/3] Support intra-function call validation

I tested the mainline kernel v6.8-rc5 without this problem, as I said before, this problem only occurs in 5.4 LTS, to be precise, it can occur from v5.4.217, with CONFIG_RETPOLINE and CONFIG_LIVEPATCH enabled

BTW: The patch for V2 version has been sent out. We can discuss based on that. Thank you!
https://lore.kernel.org/stable/20240228024535.79980-1-qirui.001@bytedance.com/T/#t

On 2/27/24 1:28 AM, Josh Poimboeuf wrote:
> On Mon, Feb 26, 2024 at 07:33:53PM +0800, qirui wrote:
>> This issue only occurs in 5.4 LTS versions after LTS 5.4.250
>> (inclusive), and this patchset is based on commit
>> 6e1f54a4985b63bc1b55a09e5e75a974c5d6719b (Linux 5.4.269)
> 
> Does the bug also exist in mainline?  If not, why?
>