[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20200213151924.770480303@linuxfoundation.org>
Date: Thu, 13 Feb 2020 07:21:05 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Christophe Leroy <christophe.leroy@....fr>,
Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCH 5.5 069/120] powerpc/ptdump: Fix W+X verification call in mark_rodata_ro()
From: Christophe Leroy <christophe.leroy@....fr>
commit e26ad936dd89d79f66c2b567f700e0c2a7103070 upstream.
ptdump_check_wx() also have to be called when pages are mapped
by blocks.
Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")
Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Link: https://lore.kernel.org/r/37517da8310f4457f28921a4edb88fb21d27b62a.1578989531.git.christophe.leroy@c-s.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/powerpc/mm/pgtable_32.c | 1 +
1 file changed, 1 insertion(+)
--- 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;
}
Powered by blists - more mailing lists