x86/power/hibernate_64: Remove VLA usage

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In the quest to remove all stack VLA usage from the kernel [1], this
removes the discouraged use of AHASH_REQUEST_ON_STACK by switching to
shash directly and allocating the descriptor in heap memory (which should
be fine: the tfm has already been allocated there too).

Link: https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com # [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

...

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Kees Cook 2018-07-24 09:49:28 -07:00 • committed by Rafael J. Wysocki

parent d5641c64c4

commit c2cd0b08e1

1 changed files with 21 additions and 15 deletions

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arch/x86/power/hibernate_64.c

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