NFS: Fix up the automount fs_context to use the correct cred

[ Upstream commit a2a8fc27dd668e7562b5326b5ed2f1604cb1e2e9 ]

When automounting, the fs_context should be fixed up to use the cred
from the parent filesystem, since the operation is just extending the
namespace. Authorisation to enter that namespace will already have been
provided by the preceding lookup.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Trond Myklebust
2025-11-28 18:56:46 -05:00
committed by Greg Kroah-Hartman
parent f719a300ea
commit f18975f2cd

View File

@@ -170,6 +170,11 @@ struct vfsmount *nfs_d_automount(struct path *path)
if (!ctx->clone_data.fattr)
goto out_fc;
if (fc->cred != server->cred) {
put_cred(fc->cred);
fc->cred = get_cred(server->cred);
}
if (fc->net_ns != client->cl_net) {
put_net(fc->net_ns);
fc->net_ns = get_net(client->cl_net);