original_kernel/virt/kvm
Sean Christopherson eed3013faa KVM: Grab a reference to KVM for VM and vCPU stats file descriptors
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>
2023-07-29 11:05:28 -04:00
..
Kconfig
Makefile.kvm
async_pf.c mm/gup: remove vmas parameter from get_user_pages_remote() 2023-06-09 16:25:26 -07:00
async_pf.h
binary_stats.c
coalesced_mmio.c KVM: destruct kvm_io_device while unregistering it from kvm_io_bus 2023-06-13 14:18:09 -07:00
coalesced_mmio.h
dirty_ring.c
eventfd.c kvm/eventfd: use list_for_each_entry when deassign ioeventfd 2023-06-13 14:25:39 -07:00
irqchip.c
kvm_main.c KVM: Grab a reference to KVM for VM and vCPU stats file descriptors 2023-07-29 11:05:28 -04:00
kvm_mm.h
pfncache.c
vfio.c
vfio.h