linux-kernel - Re: [PATCH 4.14 03/62] arm64: kprobe: make page to RO mode when allocate it

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Message-ID: <2023090431-armored-okay-0915@gregkh>
Date:   Mon, 4 Sep 2023 07:42:09 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     "Behme Dirk (CM/ESO2)" <dirk.behme@...bosch.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4.14 03/62] arm64: kprobe: make page to RO mode when
 allocate it

On Mon, Sep 04, 2023 at 07:24:19AM +0200, Behme Dirk (CM/ESO2) wrote:
> 
> On 26.11.2018 11:50, Greg Kroah-Hartman wrote:
> > 4.14-stable review patch.  If anyone has any objections, please let me know.
> 
> 
> It looks like that this patch which was back ported from v4.20 to v4.14.100
> needs the '__weak' on kernel/kprobes.c alloc_insn_page() from v4.15 commit
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=63fef14fc98a8b4fad7
> 
> to make alloc_insn_page() being used properly.
> 
> But that '__weak' from 63fef14fc98a8b4fad7 was not back ported to v4.14.x
> and is missing in v4.14.x ?

Great, can you send the missing patch after testing that it works?

thanks,

greg k-h