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| author | Kees Cook <keescook@chromium.org> | 2016-06-23 15:20:59 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2016-07-26 14:41:53 -0700 |
| commit | 04385fc5e8fffed84425d909a783c0f0c587d847 (patch) | |
| tree | 07f94a9ec860dc0bcb6efd2f44632d0a5da29237 /init | |
| parent | 97433ea4fda62349bfa42089455593cbcb57e06c (diff) | |
| download | lwn-04385fc5e8fffed84425d909a783c0f0c587d847.tar.gz lwn-04385fc5e8fffed84425d909a783c0f0c587d847.zip | |
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/Kconfig | 1 |
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 |