EEXIST is used for an object that already exists, with the same
name/handle. However, there no same object there, instead there is a
object that is using the single slot that is available for NAT hooks
since patch f92b40a8b264 ("netfilter: core: only allow one nat hook per
hook point"). Let's change this return value before this behaviour gets
exposed in the first -rc1.
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/netfilter/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 3f8e2d06b9cc..0f6b8172fb9a 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -140,7 +140,7 @@ nf_hook_entries_grow(const struct nf_hook_entries *old,
if (reg->nat_hook && orig_ops[i]->nat_hook) {
kvfree(new);
- return ERR_PTR(-EEXIST);
+ return ERR_PTR(-EBUSY);
}
if (inserted || reg->priority > orig_ops[i]->priority) {
--
2.11.0
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