powerpc/mm: Don't be too strict with _etext alignment on PPC32

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Similar to PPC64, accept to map RO data as ROX as a trade off between
between security and memory usage.

Having RO data executable is not a high risk as RO data can't be
modified to forge an exploit.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8c4a0d89d944eed984dd941e509614031a5ace2b.1589866984.git.christophe.leroy@csgroup.eu

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Christophe Leroy 2020-05-19 05:49:19 +00:00 • committed by Michael Ellerman

parent 0c8c2c9c20

commit a0591b60ee

2 changed files with 1 additions and 28 deletions

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26

arch/powerpc/Kconfig

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3

arch/powerpc/kernel/vmlinux.lds.S

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