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vfio/container: Fix SIGSEGV when open container file fails

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When open /dev/vfio/vfio fails, SIGSEGV triggers because
vfio_listener_unregister() doesn't support a NULL bcontainer
pointer.

Fixes: a1f267a7d4 ("vfio/container: reform vfio_container_connect cleanup")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250623102235.94877-2-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Zhenzhong Duan 2025-06-23 18:22:32 +08:00 • committed by Cédric Le Goater
parent eafb408629
commit abc6249d42
1 changed files with 3 additions and 1 deletions
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4
hw/vfio/container.c
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@ -710,7 +710,9 @@ static bool vfio_container_connect(VFIOGroup *group, AddressSpace *as,
return true;
fail:
vfio_listener_unregister(bcontainer);
if (new_container) {
vfio_listener_unregister(bcontainer);
}
if (group_was_added) {
vfio_container_group_del(container, group);