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cgroup: add cgroup namespace to tree after owner is set

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Otherwise we trip VFS_WARN_ON_ONC() in __ns_tree_add_raw().

Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-6-2e6f823ebdc0@kernel.org
Fixes: 7c60593985 ("cgroup: support ns lookup")
Tested-by: syzbot@syzkaller.appspotmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner
2025-10-29 13:20:19 +01:00
parent 4af033dad6
commit 768b1565d9
1 changed files with 1 additions and 1 deletions
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2
kernel/cgroup/namespace.c
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@@ -30,7 +30,6 @@ static struct cgroup_namespace *alloc_cgroup_ns(void)
ret = ns_common_init(new_ns);
if (ret)
return ERR_PTR(ret);
ns_tree_add(new_ns);
return no_free_ptr(new_ns);
}
@@ -86,6 +85,7 @@ struct cgroup_namespace *copy_cgroup_ns(u64 flags,
new_ns->ucounts = ucounts;
new_ns->root_cset = cset;
ns_tree_add(new_ns);
return new_ns;
}