Sean Christopherson 5883a4e847 KVM: Grab a reference to KVM for VM and vCPU stats file descriptors ... commit eed3013faa upstream. Grab a reference to KVM prior to installing VM and vCPU stats file descriptors to ensure the underlying VM and vCPU objects are not freed until the last reference to any and all stats fds are dropped. Note, the stats paths manually invoke fd_install() and so don't need to grab a reference before creating the file. Fixes: ce55c04945 ("KVM: stats: Support binary stats retrieval for a VCPU") Fixes: fcfe1baedd ("KVM: stats: Support binary stats retrieval for a VM") Reported-by: Zheng Zhang <zheng.zhang@email.ucr.edu> Closes: https://lore.kernel.org/all/CAC_GQSr3xzZaeZt85k_RCBd5kfiOve8qXo7a81Cq53LuVQ5r=Q@mail.gmail.com Cc: stable@vger.kernel.org Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Message-Id: <20230711230131.648752-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-08-03 10:22:40 +02:00
..
Kconfig	kvm: add PM-notifier	2021-06-17 13:09:32 -04:00
async_pf.c	mm/gup: remove task_struct pointer for all gup code	2020-08-12 10:58:04 -07:00
async_pf.h	…
binary_stats.c	KVM: stats: remove dead stores	2021-08-13 03:35:15 -04:00
coalesced_mmio.c	KVM: Destroy target device if coalesced MMIO unregistration fails	2023-03-10 09:40:00 +01:00
coalesced_mmio.h	…
dirty_ring.c	KVM: Drop unused kvm_dirty_gfn_invalid()	2021-09-06 08:23:46 -04:00
eventfd.c	KVM: eventfd: Fix false positive RCU usage warning	2022-02-16 12:56:16 +01:00
irqchip.c	…
kvm_main.c	KVM: Grab a reference to KVM for VM and vCPU stats file descriptors	2023-08-03 10:22:40 +02:00
mmu_lock.h	KVM: x86/mmu: Use an rwlock for the x86 MMU	2021-02-04 05:27:43 -05:00
vfio.c	…
vfio.h	…