Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user()

[PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Josh Poimboeuf <jpoimboe@kernel.org> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Andrew Cooper <hidden> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Josh Poimboeuf <jpoimboe@kernel.org> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Andrew Cooper <hidden> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Borislav Petkov <bp@alien8.de> · 2024-10-13
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Andrew Cooper <hidden> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-12
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-13
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-13
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Josh Poimboeuf <jpoimboe@kernel.org> · 2024-10-14
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-14
RE: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · David Laight <hidden> · 2024-10-14
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-14
RE: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · David Laight <hidden> · 2024-10-14
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Andrew Cooper <hidden> · 2024-10-14
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-14
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Andrew Cooper <hidden> · 2024-10-14
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Borislav Petkov <bp@alien8.de> · 2024-10-15
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Josh Poimboeuf <jpoimboe@kernel.org> · 2024-10-20
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-20
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Josh Poimboeuf <jpoimboe@kernel.org> · 2024-10-20
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Josh Poimboeuf <jpoimboe@kernel.org> · 2024-10-20
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-20
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Borislav Petkov <bp@alien8.de> · 2024-10-23
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-23
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-23
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-23
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-24
RE: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · David Laight <hidden> · 2024-10-24
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-24
RE: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · David Laight <hidden> · 2024-10-25
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-25
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-21
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-22
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-22
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Pawan Gupta <pawan.kumar.gupta@linux.intel.com> · 2024-10-22
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-22
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-14
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-16
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Andrew Cooper <hidden> · 2024-10-16
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-16
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-16
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-28
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-28
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-28
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-28
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Linus Torvalds <torvalds@linux-foundation.org> · 2024-10-16
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Borislav Petkov <bp@alien8.de> · 2024-10-17
Re: [PATCH] x86/uaccess: Avoid barrier_nospec() in copy_from_user() · Kirill A. Shutemov <hidden> · 2024-10-14

From: Borislav Petkov <bp@alien8.de>
Date: 2024-10-17 11:01:38

On Wed, Oct 16, 2024 at 03:32:32PM -0700, Linus Torvalds wrote:

My preference would actually be to do nothing, on the assumption that
the AMD issue is actually impossible to trigger (due to CLAC/STAC
serializing memory address checks - which the timings certainly imply
they do).

I'm verifying that assumption...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

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