Sean Christopherson fa69c355a4 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 10:26:01 +02:00
..
async_pf.c	KVM: Add helpers to wake/query blocking vCPU	2021-12-08 04:24:54 -05:00
async_pf.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504	2019-06-19 17:09:56 +02:00
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	2023-02-01 11:25:05 -08:00
coalesced_mmio.h
dirty_ring.c	KVM: Support dirty ring in conjunction with bitmap	2022-11-10 13:11:58 +00:00
eventfd.c	KVM: x86/ioapic: Resample the pending state of an IRQ when unmasking	2023-03-27 10:13:28 -04:00
irqchip.c	KVM: replace direct irq.h inclusion	2022-11-09 12:31:37 -05:00
Kconfig	KVM: Opt out of generic hardware enabling on s390 and PPC	2022-12-29 15:48:37 -05:00
kvm_main.c	KVM: Grab a reference to KVM for VM and vCPU stats file descriptors	2023-08-03 10:26:01 +02:00
kvm_mm.h	kvm: Remove the unused macro KVM_MMU_READ_{,UN}LOCK()	2022-12-27 06:00:51 -05:00
Makefile.kvm	KVM: Reinstate gfn_to_pfn_cache with invalidation support	2022-01-07 10:44:44 -05:00
pfncache.c	KVM: Skip unnecessary "unmap" if gpc is already valid during refresh	2022-11-30 19:25:24 +00:00
vfio.c	kvm/vfio: Fix potential deadlock on vfio group_lock	2023-01-20 08:50:05 -07:00
vfio.h