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Paolo Bonzini dab77d8ca8 virt: guest_memfd: fix reference leak on hwpoisoned page 
commit c31745d2c508796a0996c88bf2e55f552d513f65 upstream.

If kvm_gmem_get_pfn() detects an hwpoisoned page, it returns -EHWPOISON
but it does not put back the reference that kvm_gmem_get_folio() had
grabbed.  Add the forgotten folio_put().

Fixes: a7800aa80ea4 ("KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory")
Cc: stable@vger.kernel.org
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-27 13:52:31 +02:00
..
async_pf.c
KVM: Nullify async #PF worker's "apf" pointer as soon as it might be freed
2024-02-06 11:04:58 -08:00
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: destruct kvm_io_device while unregistering it from kvm_io_bus
2023-06-13 14:18:09 -07:00
coalesced_mmio.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dirty_ring.c
KVM: Allow arch code to track number of memslot address spaces per VM
2023-11-14 08:01:05 -05:00
eventfd.c
Generic:
2024-01-17 13:03:37 -08:00
guest_memfd.c
virt: guest_memfd: fix reference leak on hwpoisoned page
2024-06-27 13:52:31 +02:00
irqchip.c
KVM: replace direct irq.h inclusion
2022-11-09 12:31:37 -05:00
Kconfig
Merge branch 'kvm-kconfig'
2024-02-08 08:47:51 -05:00
kvm_main.c
KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()
2024-06-27 13:52:27 +02:00
kvm_mm.h
KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start()
2024-04-11 12:58:53 -07:00
Makefile.kvm
KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory
2023-11-14 08:01:03 -05:00
pfncache.c
KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start()
2024-04-11 12:58:53 -07:00
vfio.c
kvm/vfio: avoid bouncing the mutex when adding and deleting groups
2023-08-03 12:01:56 -06:00
vfio.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00