In case if our parent is a dead task (zombie) we should lookup for parent ids which will be inherited on restore. Otherwise parent->ids may be nil and SIGSEGV produced.
https://jira.sw.ru/browse/PSBM-68062 Signed-off-by: Cyrill Gorcunov <gorcu...@virtuozzo.com> --- criu/mount.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/criu/mount.c b/criu/mount.c index 2ec94b3..1066663 100644 --- a/criu/mount.c +++ b/criu/mount.c @@ -3069,6 +3069,7 @@ int restore_task_mnt_ns(struct pstree_item *current) return 0; if (current->ids && current->ids->has_mnt_ns_id) { + struct pstree_item *next = current->parent; unsigned int id = current->ids->mnt_ns_id; struct ns_id *nsid; @@ -3081,8 +3082,10 @@ int restore_task_mnt_ns(struct pstree_item *current) * already there, otherwise it will have to do * setns(). */ - if (current->parent && id == current->parent->ids->mnt_ns_id) - return 0; + for (; next; next = next->parent) { + if (next->ids && id == next->ids->mnt_ns_id) + return 0; + } nsid = lookup_ns_by_id(id, &mnt_ns_desc); if (nsid == NULL) { -- 2.7.5 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
