| commit | 48be69a026b2c17350a5ef18a1959a919f60be7d | [log] [tgz] |
|---|---|---|
| author | Russell King <rmk+kernel@arm.linux.org.uk> | Wed Jul 24 00:29:18 2013 +0100 |
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | Thu Aug 01 14:31:56 2013 +0100 |
| tree | 684261ce66ecd1e3f53ec1346dfa675a62477d1f | |
| parent | f6f91b0d9fd971c630cef908dde8fe8795aefbf8 [diff] |
ARM: move signal handlers into a vdso-like page Move the signal handlers into a VDSO page rather than keeping them in the vectors page. This allows us to place them randomly within this page, and also map the page at a random location within userspace further protecting these code fragments from ROP attacks. The new VDSO page is also poisoned in the same way as the vector page. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>