Will Deacon c2f0ad4fc0 arm64: uaccess: Prevent speculative use of the current addr_limit ... A mispredicted conditional call to set_fs could result in the wrong addr_limit being forwarded under speculation to a subsequent access_ok check, potentially forming part of a spectre-v1 attack using uaccess routines. This patch prevents this forwarding from taking place, but putting heavy barriers in set_fs after writing the addr_limit. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2018-02-06 22:53:37 +00:00
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asm	arm64: uaccess: Prevent speculative use of the current addr_limit	2018-02-06 22:53:37 +00:00
uapi/asm	arm64: v8.4: Support for new floating point multiplication instructions	2018-01-05 11:29:48 +00:00