s390/vdso: add vdso randomization

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Randomize the address of vdso if randomize_va_space is enabled.
Note that this keeps the vdso address on the same PMD as the stack
to avoid allocating an extra page table just for vdso.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Sven Schnelle 2022-04-06 09:17:21 +02:00 • committed by Heiko Carstens

parent 9e37a2e854

commit 41cd81abaf

1 changed files with 32 additions and 1 deletions

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arch/s390/kernel/vdso.c

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