Marc Zyngier 8c2e8ac8ad KVM: arm64: Check for kvm_vma_mte_allowed in the critical section ...

On page fault, we find about the VMA that backs the page fault
early on, and quickly release the mmap_read_lock. However, using
the VMA pointer after the critical section is pretty dangerous,
as a teardown may happen in the meantime and the VMA be long gone.

Move the sampling of the MTE permission early, and NULL-ify the
VMA pointer after that, just to be on the safe side.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230316174546.3777507-3-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

2023-03-16 23:42:56 +00:00

..

hyp

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2023-02-25 11:30:21 -08:00

vgic

Merge tag 'kvmarm-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2023-02-20 06:12:42 -05:00

.gitignore

KVM: arm64: Generate hyp_constants.h for the host

2021-12-06 08:37:03 +00:00

arch_timer.c

KVM: arm64: timers: Convert per-vcpu virtual offset to a global value

2023-03-11 02:00:40 -08:00

arm.c

Merge branch kvm-arm64/nv-prefix into kvmarm/next

2023-02-13 23:33:41 +00:00

debug.c

arm64: Drop SYS_ from SPE register defines

2023-01-19 18:30:22 +00:00

emulate-nested.c

KVM: arm64: nv: Support virtual EL2 exceptions

2023-02-11 09:16:11 +00:00

fpsimd.c

Merge branch kvm-arm64/misc into kvmarm/next

2023-02-13 23:33:25 +00:00

guest.c

Merge tag 'kvmarm-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2023-02-20 06:12:42 -05:00

handle_exit.c

KVM: arm64: nv: Handle SMCs taken from virtual EL2

2023-02-11 10:08:39 +00:00

hypercalls.c

KVM: arm64: timers: Convert per-vcpu virtual offset to a global value

2023-03-11 02:00:40 -08:00

inject_fault.c

KVM: arm64: nv: Support virtual EL2 exceptions

2023-02-11 09:16:11 +00:00

Kconfig

KVM: Opt out of generic hardware enabling on s390 and PPC

2022-12-29 15:48:37 -05:00

Makefile

KVM: arm64: nv: Filter out unsupported features from ID regs

2023-02-11 10:13:30 +00:00

mmio.c

KVM: arm64: Generalise VM features into a set of flags

2022-03-18 14:02:33 +00:00

mmu.c

KVM: arm64: Check for kvm_vma_mte_allowed in the critical section

2023-03-16 23:42:56 +00:00

nested.c

KVM: arm64: nv: Use reg_to_encoding() to get sysreg ID

2023-02-11 22:10:34 +00:00

pkvm.c

KVM: arm64: Return guest memory from EL2 via dedicated teardown memcache

2022-11-11 17:18:58 +00:00

pmu-emul.c

KVM: arm64: PMU: Don't save PMCR_EL0.{C,P} for the vCPU

2023-03-13 18:05:57 +00:00

pmu.c

KVM: arm64: Pass pmu events to hyp via vcpu

2022-05-15 11:26:41 +01:00

psci.c

Merge branch kvm-arm64/psci-suspend into kvmarm-master/next

2022-05-16 17:48:20 +01:00

pvtime.c

KVM: MMU: Make the definition of 'INVALID_GPA' common

2023-01-19 21:48:38 +00:00

reset.c

Merge branch kvm-arm64/nv-prefix into kvmarm/next

2023-02-13 23:33:41 +00:00

stacktrace.c

arm64: stacktrace: track hyp stacks in unwinder's address space

2022-09-09 12:30:08 +01:00

sys_regs.c

KVM: arm64: PMU: Fix GET_ONE_REG for vPMC regs to return the current value

2023-03-13 18:05:40 +00:00

sys_regs.h

KVM: arm64: nv: Allow a sysreg to be hidden from userspace only

2023-02-11 10:13:29 +00:00

trace_arm.h

KVM: arm64: nv: Support virtual EL2 exceptions

2023-02-11 09:16:11 +00:00

trace_handle_exit.h

KVM: arm64: Upgrade trace_kvm_arm_set_dreg32() to 64bit

2021-08-20 11:12:18 +01:00

trace.h

KVM: arm64: Move virt/kvm/arm to arch/arm64

2020-05-16 15:03:59 +01:00

trng.c

KVM: arm64: Implement the TRNG hypervisor call

2021-01-25 22:19:31 +00:00

va_layout.c

arm64: alternatives: kvm: prepare for cap changes

2022-09-16 17:15:02 +01:00

vgic-sys-reg-v3.c

KVM: arm64: vgic-v3: Convert userspace accessors over to FIELD_GET/FIELD_PREP

2022-07-17 11:55:33 +01:00

vmid.c

KVM: x86: Unify pr_fmt to use module name for all KVM modules

2022-12-29 15:47:35 -05:00