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

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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>
This commit is contained in:
Trond Myklebust
2025-11-28 18:56:46 -05:00
parent 2b092175f5
commit a2a8fc27dd
1 changed files with 5 additions and 0 deletions
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5
fs/nfs/namespace.c
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@@ -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);