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mount: skip the criu's mount namespace if tasks live in another mntns

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Currently here is a bug, because when we see criu's mount namespace,
we go to the "out" mark and don't validate mounts.

Reported-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2014-09-18 16:48:00 +04:00
committed by Pavel Emelyanov
parent 6bc74e35fe
commit 65b3a95c9b
1 changed files with 6 additions and 5 deletions
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11
mount.c
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@@ -2087,11 +2087,12 @@ static int walk_mnt_ns(int (*cb)(struct ns_id *, struct mount_info *, void *), v
* Otherwise, the necessary list of mounts * Otherwise, the necessary list of mounts
* will be collected below. * will be collected below.
*/ */
if (!(root_ns_mask & CLONE_NEWNS)) { if ((root_ns_mask & CLONE_NEWNS))
mntinfo = collect_mntinfo(ns); continue;
if (mntinfo == NULL)
goto err; mntinfo = collect_mntinfo(ns);
} if (mntinfo == NULL)
goto err;
/* /*
* Mount namespaces are dumped only if the root task lives in * Mount namespaces are dumped only if the root task lives in
* its own mntns, so we can stop enumeration of namespaces. * its own mntns, so we can stop enumeration of namespaces.