Am 09.07.2020 um 15:50 hat Greg Kurz geschrieben:
> It is possible for blk_remove_bs() to race with blk_drain_all(), causing
> the latter to dereference a stale blk->root pointer:
>
>
> blk_remove_bs(blk)
>bdrv_root_unref_child(blk->root)
> child_bs = blk->root->bs
> bdrv_detach_chi
It is possible for blk_remove_bs() to race with blk_drain_all(), causing
the latter to dereference a stale blk->root pointer:
blk_remove_bs(blk)
bdrv_root_unref_child(blk->root)
child_bs = blk->root->bs
bdrv_detach_child(blk->root)
...
g_free(blk->root) <== blk-
