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(parent: 7b5d412) | patch
lkdtm: fix stack protector trigger
authorKees Cook <keescook@chromium.org>
Mon, 8 Jul 2013 17:01:30 +0000 (10:01 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 25 Jul 2013 05:47:19 +0000 (22:47 -0700)
commit4f198289747f0391bc5a5574279b1791a8ca2d06
treefcc306d3c263d6b13b10d7b3c3d36b96c161d1f5tree | snapshot (tar.gz zip)
parent7b5d4122d39f7c26ce42806b7a67cf04537545e6commit | diff
lkdtm: fix stack protector trigger

The -fstack-protector compiler flag will only build stack protections if
a character array is seen. Additionally, the offset to the saved
instruction pointer changes based on architecture, so stomp much harder
(64 bytes) when corrupting the stack.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/lkdtm.c diff | blob | blame | history