Steven Price c4d7c51845 KVM: arm64: Fix race when enabling KVM_ARM_CAP_MTE ... When enabling KVM_CAP_ARM_MTE the ioctl checks that there are no VCPUs created to ensure that the capability is enabled before the VM is running. However no locks are held at that point so it is (theoretically) possible for another thread in the VMM to create VCPUs between the check and actually setting mte_enabled. Close the race by taking kvm->lock. Reported-by: Alexandru Elisei <alexandru.elisei@arm.com> Fixes: 673638f434 ("KVM: arm64: Expose KVM_ARM_CAP_MTE") Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210729160036.20433-1-steven.price@arm.com		2021-07-29 17:34:01 +01:00
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hyp	KVM: arm64: Fix off-by-one in range_is_memory	2021-07-29 17:33:04 +01:00
vgic	…
Kconfig	…
Makefile	…
arch_timer.c	…
arm.c	KVM: arm64: Fix race when enabling KVM_ARM_CAP_MTE	2021-07-29 17:34:01 +01:00
debug.c	…
fpsimd.c	…
guest.c	…
handle_exit.c	…
hypercalls.c	…
inject_fault.c	…
irq.h	…
mmio.c	…
mmu.c	KVM: arm64: Fix detection of shared VMAs on guest fault	2021-07-14 09:49:10 +01:00
perf.c	…
pmu-emul.c	…
pmu.c	…
psci.c	…
pvtime.c	…
reset.c	…
sys_regs.c	…
sys_regs.h	…
trace.h	…
trace_arm.h	…
trace_handle_exit.h	…
trng.c	…
va_layout.c	…
vgic-sys-reg-v3.c	…