iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/ptdump: Fix W+X verification call in mark_rodata_ro()

Browse Source 
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@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/37517da8310f4457f28921a4edb88fb21d27b62a.1578989531.git.christophe.leroy@c-s.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe Leroy 2020-01-14 08:13:08 +00:00 committed by Greg Kroah-Hartman
parent 6d7edac146
commit 17f37249d7
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/powerpc/mm/pgtable_32.c
View File

@ -221,6 +221,7 @@ void mark_rodata_ro(void)
if (v_block_mapped((unsigned long)_sinittext)) {
mmu_mark_rodata_ro();
ptdump_check_wx();
return;
}