diff options
| author | Kees Cook <keescook@chromium.org> | 2016-06-23 15:20:59 -0700 |
|---|---|---|
| committer | Sami Tolvanen <samitolvanen@google.com> | 2016-09-06 15:54:24 +0000 |
| commit | 103aa7df683e7811e88e82f52c2c3f16e419a7b1 (patch) | |
| tree | 922a3dfb082e54ec2f17a1ef3057913649396da6 /init | |
| parent | 2f40fdd6bc0e1beca522657d3c9242e7b25917a2 (diff) | |
UPSTREAM: 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>
Change-Id: Ib910a71fdc2ab808e1a45b6d33e9bae1681a1f4a
(cherry picked from commit 04385fc5e8fffed84425d909a783c0f0c587d847)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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 235c7a2c0d20..fa031a140397 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1719,6 +1719,7 @@ 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 |