4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Herbert Xu <[email protected]>

[ Upstream commit b5f9bd15b88563b55a99ed588416881367a0ce5f ]

ila_xlat_nl_cmd_flush uses rhashtable walkers allocated from the
stack but it never frees them.  This corrupts the walker list of
the hash table.

This patch fixes it.

Reported-by: [email protected]
Fixes: b6e71bdebb12 ("ila: Flush netlink command to clear xlat...")
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 net/ipv6/ila/ila_xlat.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/ipv6/ila/ila_xlat.c
+++ b/net/ipv6/ila/ila_xlat.c
@@ -420,6 +420,7 @@ int ila_xlat_nl_cmd_flush(struct sk_buff
 
 done:
        rhashtable_walk_stop(&iter);
+       rhashtable_walk_exit(&iter);
        return ret;
 }
 


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