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authorKees Cook <keescook@chromium.org>2016-06-24 01:20:59 +0300
committerKees Cook <keescook@chromium.org>2016-07-27 00:41:53 +0300
commit04385fc5e8fffed84425d909a783c0f0c587d847 (patch)
tree07f94a9ec860dc0bcb6efd2f44632d0a5da29237 /init
parent97433ea4fda62349bfa42089455593cbcb57e06c (diff)
downloadlinux-04385fc5e8fffed84425d909a783c0f0c587d847.tar.xz
mm: SLAB hardened usercopy support
Under CONFIG_HARDENED_USERCOPY, this adds object size checking to the SLAB allocator to catch any copies that may span objects. Based on code from PaX and grsecurity. Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index c02d89777713..1312d7b5a5fb 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1758,6 +1758,7 @@ choice
config SLAB
bool "SLAB"
+ select HAVE_HARDENED_USERCOPY_ALLOCATOR
help
The regular slab allocator that is established and known to work
well in all environments. It organizes cache hot objects in