* [PATCH] powerpc/ptdump: fix W+X verification call in mark_rodata_ro()
@ 2020-01-14 8:13 Christophe Leroy
2020-01-29 5:17 ` Michael Ellerman
0 siblings, 1 reply; 2+ messages in thread
From: Christophe Leroy @ 2020-01-14 8:13 UTC (permalink / raw)
To: Benjamin Herrenschmidt, Paul Mackerras, Michael Ellerman
Cc: linux-kernel, linuxppc-dev
ptdump_check_wx() also have to be called when pages are mapped
by blocks.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")
---
arch/powerpc/mm/pgtable_32.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 73b84166d06a..5fb90edd865e 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -218,6 +218,7 @@ void mark_rodata_ro(void)
if (v_block_mapped((unsigned long)_sinittext)) {
mmu_mark_rodata_ro();
+ ptdump_check_wx();
return;
}
--
2.13.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] powerpc/ptdump: fix W+X verification call in mark_rodata_ro()
2020-01-14 8:13 [PATCH] powerpc/ptdump: fix W+X verification call in mark_rodata_ro() Christophe Leroy
@ 2020-01-29 5:17 ` Michael Ellerman
0 siblings, 0 replies; 2+ messages in thread
From: Michael Ellerman @ 2020-01-29 5:17 UTC (permalink / raw)
To: Christophe Leroy, Benjamin Herrenschmidt, Paul Mackerras
Cc: linuxppc-dev, linux-kernel
On Tue, 2020-01-14 at 08:13:08 UTC, Christophe Leroy wrote:
> ptdump_check_wx() also have to be called when pages are mapped
> by blocks.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/e26ad936dd89d79f66c2b567f700e0c2a7103070
cheers
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2020-01-29 5:17 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-14 8:13 [PATCH] powerpc/ptdump: fix W+X verification call in mark_rodata_ro() Christophe Leroy
2020-01-29 5:17 ` Michael Ellerman
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).