Re: [patch 01/18] powerpc: Move stack randomization after syscall_enter_from_user_mode()

Mukesh Kumar Chaurasiya <[email protected]> Fri, 10 Jul 2026 00:02:27 +0530
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Message-ID <[email protected]> 
On Tue, Jul 07, 2026 at 09:05:58PM +0200, Thomas Gleixner wrote:
> add_random_kstack_offset() is invoked before syscall_enter_from_user_mode()
> establishes state. That's wrong because add_random_kstack_offset() calls
> into instrumentable code.
> 
> Move it after syscall_enter_from_user_mode() to ensure that state is
> correctly established.
> 
> Signed-off-by: Thomas Gleixner <[email protected]>
> Cc: Michael Ellerman <[email protected]>
> Cc: Shrikanth Hegde <[email protected]>
> Cc: [email protected]

Thanks for fixing this.

Reviewed-by: Mukesh Kumar Chaurasiya (IBM) <[email protected]>

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