Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Fri, 12 Feb 2016 17:31:47 -0700
From: David Brown <>
To: Ard Biesheuvel <>
	Catalin Marinas <>,
	Will Deacon <>,
	"" <>,
	"" <>,
	Kees Cook <>
Subject: Re: [PATCH] arm64: vdso: Mark vDSO code as

On Thu, Feb 11, 2016 at 03:19:20PM +0100, Ard Biesheuvel wrote:

>> diff --git a/arch/arm64/kernel/vdso/vdso.S b/arch/arm64/kernel/vdso/vdso.S
>> index 60c1db5..db7c0f2 100644
>> --- a/arch/arm64/kernel/vdso/vdso.S
>> +++ b/arch/arm64/kernel/vdso/vdso.S
>> @@ -24,6 +24,7 @@
>>         __PAGE_ALIGNED_DATA
>^^ You can get rid of this now as well

Can we?  The page is getting mapped to userspace, and if we didn't
page align it, we could leak kernel read-only data to every userspace


Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.