Thomas Gleixner 187598fd82 KVM: x86: Cancel pvclock_gtod_work on module removal ... commit 594b27e677 upstream. Nothing prevents the following: pvclock_gtod_notify() queue_work(system_long_wq, &pvclock_gtod_work); ... remove_module(kvm); ... work_queue_run() pvclock_gtod_work() <- UAF Ditto for any other operation on that workqueue list head which touches pvclock_gtod_work after module removal. Cancel the work in kvm_arch_exit() to prevent that. Fixes: 16e8d74d2d ("KVM: x86: notifier for clocksource changes") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Message-Id: <87czu4onry.ffs@nanos.tec.linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-19 10:08:31 +02:00
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boot
configs
crypto
entry
events	x86/events/amd/iommu: Fix sysfs type mismatch	2021-05-14 09:44:26 +02:00
hyperv
ia32
include	KVM: x86/mmu: Remove the defunct update_pte() paging hook	2021-05-19 10:08:20 +02:00
kernel	x86/kprobes: Fix to check non boostable prefixes correctly	2021-05-14 09:44:23 +02:00
kvm	KVM: x86: Cancel pvclock_gtod_work on module removal	2021-05-19 10:08:31 +02:00
lib
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Kconfig	x86/platform/uv: Fix !KEXEC build failure	2021-05-14 09:44:22 +02:00
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Makefile	x86/build: Propagate $(CLANG_FLAGS) to $(REALMODE_FLAGS)	2021-05-11 14:04:06 +02:00
Makefile.um
Makefile_32.cpu