x86: make "apic" an early_param() on 32-bit, NULL check

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Cyrill Gorcunov observed:

> you turned it into early_param so now it's NULL injecting vulnerabled.
> Could you please add checking for NULL str param?

fix that.

Also, change the name of 'str' into 'arg', to make it more apparent
that this is an optional argument that can be NULL, not a string
parameter that is empty when unset.

Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

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Rene Herman 2008-08-11 19:20:17 +02:00 • committed by Ingo Molnar

parent b0fbaa6b59

commit 48d97cb65e

1 changed files with 7 additions and 3 deletions

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arch/x86/kernel/apic_32.c

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