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| author | Kees Cook | 2016-06-24 00:04:01 +0200 |
|---|---|---|
| committer | Kees Cook | 2016-07-26 23:41:48 +0200 |
| commit | 5b710f34e194c6b7710f69fdb5d798fdf35b98c1 (patch) | |
| tree | ed1e71a6c526cf24861803af7e48b81ce68e82b6 /arch/x86/Kconfig | |
| parent | mm: Hardened usercopy (diff) | |
| download | kernel-qcow2-linux-5b710f34e194c6b7710f69fdb5d798fdf35b98c1.tar.gz kernel-qcow2-linux-5b710f34e194c6b7710f69fdb5d798fdf35b98c1.tar.xz kernel-qcow2-linux-5b710f34e194c6b7710f69fdb5d798fdf35b98c1.zip | |
x86/uaccess: Enable hardened usercopy
Enables CONFIG_HARDENED_USERCOPY checks on x86. This is done both in
copy_*_user() and __copy_*_user() because copy_*_user() actually calls
down to _copy_*_user() and not __copy_*_user().
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 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index a2865ddfc1ff..9640942b68b9 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -80,6 +80,7 @@ config X86 select HAVE_ALIGNED_STRUCT_PAGE if SLUB select HAVE_AOUT if X86_32 select HAVE_ARCH_AUDITSYSCALL + select HAVE_ARCH_HARDENED_USERCOPY select HAVE_ARCH_HUGE_VMAP if X86_64 || X86_PAE select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_KASAN if X86_64 && SPARSEMEM_VMEMMAP |