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RE: [PATCH] hw/vfio/container: Fix SIGSEV on vfio_container_instance_fin
From: |
Duan, Zhenzhong |
Subject: |
RE: [PATCH] hw/vfio/container: Fix SIGSEV on vfio_container_instance_finalize() |
Date: |
Mon, 22 Jul 2024 06:29:25 +0000 |
>-----Original Message-----
>From: Eric Auger <eric.auger@redhat.com>
>Subject: [PATCH] hw/vfio/container: Fix SIGSEV on
>vfio_container_instance_finalize()
>
>In vfio_connect_container's error path, the base container is
>removed twice form the VFIOAddressSpace QLIST: first on the
>listener_release_exit label and second, on free_container_exit
>label, through object_unref(container), which calls
>vfio_container_instance_finalize().
>
>Let's remove the first instance.
>
>Fixes: 938026053f4 ("vfio/container: Switch to QOM")
>Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Thanks
Zhenzhong
>---
> hw/vfio/container.c | 1 -
> 1 file changed, 1 deletion(-)
>
>diff --git a/hw/vfio/container.c b/hw/vfio/container.c
>index 425db1a14c..d8b7c533af 100644
>--- a/hw/vfio/container.c
>+++ b/hw/vfio/container.c
>@@ -657,7 +657,6 @@ static bool vfio_connect_container(VFIOGroup
>*group, AddressSpace *as,
> return true;
> listener_release_exit:
> QLIST_REMOVE(group, container_next);
>- QLIST_REMOVE(bcontainer, next);
> vfio_kvm_device_del_group(group);
> memory_listener_unregister(&bcontainer->listener);
> if (vioc->release) {
>--
>2.41.0