Dave Martin 66e48a0d29 arm64: fpsimd: Avoid FPSIMD context leakage for the init task ... The init task is started with thread_flags equal to 0, which means that TIF_FOREIGN_FPSTATE is initially clear. It is theoretically possible (if unlikely) that the init task could reach userspace without ever being scheduled out. If this occurs, data left in the FPSIMD registers by the kernel could be exposed. This patch fixes this anomaly by ensuring that the init task's initial TIF_FOREIGN_FPSTATE is set. Signed-off-by: Dave Martin <Dave.Martin@arm.com> Fixes: 005f78cd88 ("arm64: defer reloading a task's FPSIMD state to userland resume") Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>		2018-05-25 12:27:55 +01:00
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boot	This pull request contains Broadcom ARM64-based SoCs Device Tree fixes	2018-04-27 10:21:18 +02:00
configs	arm64: defconfig: add CONFIG_UNIPHIER_THERMAL and CONFIG_SNI_AVE	2018-03-27 15:31:19 +02:00
crypto	kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers	2018-04-07 19:04:02 +09:00
include	arm64: fpsimd: Avoid FPSIMD context leakage for the init task	2018-05-25 12:27:55 +01:00
kernel	arm64: fpsimd: Generalise context saving for non-task contexts	2018-05-25 12:27:55 +01:00
kvm	KVM: arm64: Convert lazy FPSIMD context switch trap to C	2018-05-25 12:27:54 +01:00
lib	arm64: avoid instrumenting atomic_ll_sc.o	2018-04-27 12:14:44 +01:00
mm	arm64: mm: drop addr parameter from sync icache and dcache	2018-04-24 09:23:00 +01:00
net	bpf, arm64: fix out of bounds access in tail call	2018-02-22 16:06:28 -08:00
xen	arm64: mm: Add additional parameter to uaccess_ttbr0_disable	2018-01-17 13:57:49 +01:00
Kconfig	ARM:	2018-04-09 11:42:31 -07:00
Kconfig.debug
Kconfig.platforms	arm64: add Renesas R8A77965 support	2018-03-13 19:05:58 +01:00
Makefile	arm64: support __int128 with clang	2018-04-24 19:07:55 +01:00