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kernel: enable page poisoning on x86_64

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This is already active on i586 and prevents information leaks from freed
data.

Cc: Arne Fitzenreiter <arne.fitzenreiter@ipfire.org>
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This commit is contained in:
Peter Müller
2020-04-14 16:32:47 +02:00
committed by Arne Fitzenreiter
parent 442a7f5ea2
commit efd508e9f6
1 changed files with 3 additions and 1 deletions
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4
config/kernel/kernel.config.x86_64-ipfire
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@@ -6327,7 +6327,9 @@ CONFIG_DEBUG_KERNEL=y
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_PAGE_POISONING=y
# CONFIG_PAGE_POISONING_NO_SANITY is not set
CONFIG_PAGE_POISONING_ZERO=y
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
# CONFIG_DEBUG_OBJECTS is not set