Kees Cook 9e8084d3f7 arm64: Implement thread_struct whitelist for hardened usercopy
While ARM64 carries FPU state in the thread structure that is saved and
restored during signal handling, it doesn't need to declare a usercopy
whitelist, since existing accessors are all either using a bounce buffer
(for which whitelisting isn't checking the slab), are statically sized
(which will bypass the hardened usercopy check), or both.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: zijun_hu <zijun_hu@htc.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
2018-01-15 12:08:05 -08:00
..
2017-11-25 08:21:54 -10:00
2017-11-17 17:45:29 -08:00
2017-11-15 15:01:28 -08:00
2017-11-17 17:45:29 -08:00
2017-11-15 18:21:03 -08:00
2017-11-17 17:45:29 -08:00
2017-11-15 18:21:00 -08:00
2017-11-14 18:25:40 -08:00
2017-11-29 14:19:22 -08:00
2017-11-14 18:25:40 -08:00
2017-11-15 18:21:04 -08:00
2017-12-01 08:40:17 -05:00
2017-11-17 09:51:57 -08:00